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.005uf / 100,000 VDC BYCAP high voltage caps NOS (3 in stock)
01A Wards by Sylvania used/good 1940's (2.6ma Gm=700)
.05uf / 12,000VDC Plastic Capacitor Inc. NOS axial oil cap in glass and metal can (7.25" L)
0A2 used/good (20 in stock)
JAN-0A2WA Sylvania and Philips NOS 1970's - 1982 (6 in stock)
0A2WA US Brands used/test like new 1960's-1970's
(!!!!) (Best Pair) 0A3 GE NOS 1956-1961 (neon)
0A3 GE used/good 1959 (neon)
0A3 RCA NOS 1971 (neon)
0A3 RCA branded Marshall Electronics used/good 1950's (neon)
(PAIR) 0A3 CBS NOS 1960 era same build (neon)
0A3 RCA used/good (neon)
0A4G RCA NOS 1940's - 1950's (5 in stock)
(!) (PAIR) 0B2 GE France NOS 1970 (argon gas) (1 pair)
0B2 Hytron NOS 1960's (argon)
0B2 Japan NOS rebranded GE Great Britain 1970's (1 in stock) (argon)
0B2 RCA low hours/test like new 1965 (1 in stock)
0B2 RCA low hours/test like new 1969-1970's (4 in stock)
(!) (BEST PRICE) 0B2 RCA used/good 1960's - 1970's (4 tubes for $9.99)
0B2 Russian NOS rebranded GE France 1970's (3 in stock)
0B2 Tungsol used/good 1960's (argon)
(!) 0B2=108C1 Valvo Germany like new in white boxes 1960 era (neon gas)
WL-0B2 Westinghouse NOS 1960 (argon gas) (1 in stock)
(!!!) (BEST PAIR) JHY-0B2WA CBS NOS 1960 (neon gas) (1 pair)
0B2WA RCA NOS 1960 (argon) (1 in stock)
0B2WA RCA NOS "D" getter 1956 (argon)
(!!) (Recommended Pair) 0B3 Sylvania NOS 1956 same build
0C2 RCA NOS (1 in stock) (neon)
(!!) 0C3 Sylvania branded GE NOS 1972-1976 (1 Pair)
(!!) (BEST PAIR 1950's) 0C3 CBS NOS 1955 (argon)
(!) (1 PAIR) 0C3 GE branded 0C3A NOS 1976 (argon)
(!!) (Recommended Pair) 0C3 GE NOS 1946 (argon)
0C3 GE NOS 1946 (argon)
0C3 National Russian NOS 1970's (neon)
0C3 RCA NOS 1951 argon
0C3 RCA NOS 1951 argon
(!) (BEST PAIR) 0C3 RCA NOS - 1 tube branded GE 1959 and 1962 (1 pair) (argon)
(!) 0C3 RCA used/test like new 1951 (1 pair)
0C3 RCA used/test like new 1951 (1 Pair)
0C3=VR105 RCA used/good 1940's
(!) 0C3=VR-105 GE tests like new 1969 argon
0C3=VR105 RCA used/good 1948 (argon)
(PAIR) 0C3A Russian rebranded OC3 GE Italy NOS 1982 (1 pair)
0C3W Tungsol rebranded 0C3 National NOS (2 in stock) (argon)
0D3 Hytron branded Electronic Enterprises NOS 1950 era (argon)
0D3 GE low hours/like new 1960 (argon)
0D3 RCA NOS 1946 (argon)
0D3 RCA like new 1946 (argon)
0D3 RCA used/good 1950 (argon)
0D3 RCA used/good 1954 (argon)
(!!) (PAIR 1945) JAN-CRC-0D3 RCA used/strong 1945 (argon)
0D3 RCA like new 1940's (argon)
0D3A RCA NOS 1970
0E3=85A1 Mullard UK NOS 1960's (2 in stock)
0E3=85A1 Amperex UK NOS 1962
0Z4 US Brands metal can NOS (6 in stock)
1630 RCA NOS original box (SCR-270 radar)
(!!!!) (Best Pair) 6SN7GTB GE NOS 1962-1964 (7.0/7.2ma and 7.6/7.3ma) (smooth) (Schiit Freya, Rogue)
(!!!) (#1 6BX7GT RCA single) 6BX7GT RCA NOS 1961 (41/48ma)
(!) 802 GE NOS 1950 (1 in stock)
(!!) (1 PAIR) 12AV7 GE branded Westinghouse NOS 1963 (15.6/17.8ma and 15/16.2ma)
(1 PAIR) 18FX6 GE NOS 1960's (80/60 and 81/60)
(1 PAIR) 18FX6A Raytheon Toshiba Japan NOS (72/60 and 72/60)
(1 PAIR) 18FX6A Sylvania NOS 1970's (80/60 and 80/60)
(1 PAIR) 18FX6A Sylvania NOS 1960's (80/60 and 83/60)
(!) (1 Pair) 25E5=PL36 GE Japan NOS 1970 (91-92/60)
(!!) (1 Pair) 30 RCA Cunningham NOS 1946 (2.6ma and 3.1ma)
(1 Pair) 31 RCA/Cunningham NOS 1930's - 1940's (12.0ma and 13.2ma) (Same Gm)
(!) (1 Pair) 31 Sylvania rebranded Zenith NOS 1940's (12.8ma and 13.6ma)
(1 PAIR) NE-408A Northern Electric Canada NOS 1972-1974 (83/60 and 85/60)
(1 PAIR) 408A Western Electric used/good 1964-1969 (76/60 and 74/60)
(1 PAIR) 408A Western Electric used/tests like new 1965-1966 (91/60 and 97/60)
(!) (1 Pair) 6197=6CL6 RCA gray plate NOS 1968 (25ma and 25ma)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (10ma and 10.6ma) (Same Gm)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (11.2ma and 11.3ma)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (12.0ma and 12.8ma) (close Gm)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (8.6ma and 9.0ma)
(!!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (9ma and 9ma) 1-2% matched
(!!!) (1 Pair) 6SH7GT National Union branded Raytheon NOS 1940's (9.5ma and 10ma)
(!!) (1 PAIR) 6V6 GE metal can NOS 1976 (36.4ma and 37ma)
(!!!) (1 PAIR) 6V6 GE metal can NOS 1976 (36.6ma and 36.8ma) 1-2% matched
(!!) (1 PAIR) 6V6 GE metal can NOS 1976 (36.8ma and 37.6ma)
(!) (SINGLE) 5687 Raytheon NOS black plates "U" getter 1956 (40ma/32ma)
(!!!) (BEST PRICE!) (1 set of 10) 6V6 GE metal can NOS (10 for $109.99) (BEST PRICE!)
(1 set of 10 tubes) 448A Western Electric "TIPPED TOP" used/good 75-85% with "D" getter 1965-1966
VT-135=12J5GT Sylvania round plate NOS 1940's (11.2ma Gm=3000)
(!!) 286A Western Electric low hours/tests like new "top printing" 1942-1945 (6.8ma)
10 ohm 10 watt cement power resistor NOS (14 in stock)
10 ohm 20 watt cement power resistor NOS (1 in stock)
10 Raytheon NOS 1940's (24ma)
(!!!!) (Single) 10 Sylvania "engraved base" 1930's NOS (29ma)
(!!!!) (Recommended Pair) 10=VT-25 SYLVANIA NOS 1940's (28.6ma and 29.6ma) (Same Gm)
10=VT-25 Sylvania branded Tungsol like new 1940's (26.2ma)
10=VT-25 Sylvania NOS 1940's (25ma)
(!!!) (Recommended Pair) 10=VT-25 SYLVANIA NOS 1940's large getter flashing (27.0ma and 28.2ma) (Same Gm)
100-77 JFD Ballasts NOS (6 in stock)
1007 Raytheon NOS 1963
100uf/500VDC and 100uf/500VDC LCR UK electrolytic cap 1996 used/good - small dent in side of cap (1 in stock)
101L Western Electric top printing 1940-1945 used/good (4.1ma Gm=800)
102D Western Electric NOS 1954 large getter (0.7ma Gm=600)
(!) 108C1=0B2 Siemens made in France 1970 (argon gas)
10BU11 US Brands NOS
10DE7 US Brands NOS (6 in stock)
10EM7 RCA branded GE faded printing NOS (2.5/32ma)
10GF7 Sylvania NOS (2 in stock)
10GK6 GE gray plate NOS (4 in stock)
10GK6 Raytheon Korea NOS (6 in stock)
10GN8 Mixed Brands NOS (25 in stock)
10GV8=LCL85 Hitachi RCA Japan NOS (2 in stock)
80uf / 450VDC Cornell Dubilier (CDE) axial cap NOS (8 in stock)
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's branded National 1962 (25.8ma and 26.4ma) 1-3% matched (same Gm)
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's (28ma and 28.8ma) (same Gm) 1-3% matched
(!!) (single) 10=VT-25 SYLVANIA used/tests like new 1940's (26ma)
11 pin Amphenol brown phenolic chassis mount socket used/like new (6 in stock)
11 pin Amphenol brown phenolic chassis mount socket NOS (1 in stock)
112A Balloon no name with blue "Type 112-A" sticker on glass used/good (4.7ma)
112A Rayovac Balloon engraved base used/very good, internals like a UX-112A RCA (8.5ma)
112A RCA used/tests like new 1930's (7.5ma)
115NO10T Amperite Time Delay Relay (3 in stock)
115NO120T Amperite Time Delay Relay NOS (3 in stock)
115NO15T Amperite Time Delay Relay (2 in stock)
115NO20 Amperite Time Delay Relay NOS (7 in stock)
115NO30 Amperite Time Delay Relay SHORT BOTTLE NOS (4 in stock)
115NO30 Amperite Time Delay Relay used/good broken center guide pin
115NO30T Amperite Time Delay Relay (1 in stock)
115NO45 Amperite Time Delay Relay NOS (1 in stock)
115NO5T Amperite Time Delay Relay (4 in stock)
115NO60 Amperite Time Delay Relay NOS (9 in stock)
115NO60 Amperite Time Delay Relay NOS (3 in stock)
115NO90T Amperite Time Delay Relay (3 in stock)
116 National Union NOS (3 in stock)
117L7/M7GT Tungsol used/like new 1956 (76/50)
117L7/M7GT Hyvac USA NOS (76/50)
117L7/M7GT Super Silverton used/good (80/50)
117L7/M7GT Tungsol used/good (80/50)
117L7/M7GT US made 1950 era used/good (68/50)
117L7GT Hytron NOS 1950
117L7GT Sylvania NOS 1940's (2 in stock)
117L7GT Tungsol NOS 1948 (78/50)
117N7GT US Brands NOS (3 in stock)
117P7GT US Brands NOS (6 in stock)
117Z3 GE NOS 1964 (5 in stock)
117Z3 RCA NOS 1960's (51/40)
117Z3 Sylvania NOS 1951 (6 in stock)
117Z3 US Brands used/good (2 in stock)
117Z4GT US Brands NOS (4 in stock)
117Z6GT US Brands NOS (6 in stock)
12-4 Amperite Ballast NOS original boxes (3 in stock)
120-200uf @ 300VDC CDE (Cornell) NOS FP cap NOS 2" tall (AA0375A) (1 in stock)
7C4=1203A Sylvania NOS 1940's (3 in stock)
120uf/400V, 20uf/400VDC, 4uf/400V, 100uf/100VDC Mallory FP NOS 4.5"H x 1.375" dia (FP421.86)
120uf and 10uf/350VDC and 50uf and 40uf/150VDC Mallory FP cap NOS (1 in stock) (4" tall)
7 pin EF JOHNSON Type (122-237-1) ceramic chassis mount socket NOS (13 in stock) (813 tube)
1229 Sylvania NOS (2 in stock)
1258 Tungsol NOS (1 in stock)
(!!!) (Best Single) 127 Arcturus Blue Balloon tests like new 1930 era in white box (5.6ma) (High Ma and Gm)
(!!!) (Recommended Single) 127 Arcturus Blue Balloon used/good 1930 era in white box (4.3ma)
3B7=VT-182=1291 Sylvania used/very good 1944
1299=3D6 NOS Sylvania NOS 1953 (104/52)
12A8G Sylvania NOS (1 in stock)
12A8GT Nat. Union used/good 1940's (89/60)
12A8GT Sylvania NOS 1951 (98/60)
12A8GT Tungsol NOS 1947 (52/29)
12A8GT Tungsol used/good 1940's (92/60)
12A8GT Tungsol used/very good 1940's (92/60)
12AB5 US Brands used/good (4 in stock)
12AB5 US Brands NOS (20 in stock)
12AD6 US Brands NOS (6 in stock)
12AE6A Tungsol NOS 1950's (single)
12AF6 US Brands NOS (8 in stock)
12AF6 US Brands used/good (2 in stock)
12AH7GT US Brands NOS (8 in stock)
12AJ6 RCA branded CBS NOS 1960's (10 in stock)
12AL5 GE NOS (6 in stock)
12AL5 RCA NOS 1970's (47/40 and 49/40)
(!!) (PAIR) 12AL5 RCA NOS 1973 (46-47/40 and 46-47/40)
12AL5 RCA NOS (25 in stock)
12AL5 Sylvania FAA NOS 1960's (2 in stock)
12AL5 Tungsol NOS 1960's (49/40 and 49/40)
12AL5 GE JAN NOS (2 in stock)
12AT6 Brimar BVA UK NOS 1955 in white box (71/60)
12AT6 Various Brands NOS (4 in stock)
12AT6 Raytheon Taiwan NOS 1970's (80/60 and 80/60)
(!!) (Best GE Single) 12AT7=6679 GE NOS 1978 (10ma/10.1ma) 1-2% section balance
(!!!) (Best Value) 12AT7 Amperex Mullard UK NOS 1971 (7.5/11.2ma)
(!!!) (Best Single) 12AT7 Amperex Mullard UK NOS 1973 (11.0/11.2ma)
(!!) 12AT7 Brimar England black plates "U" getter used/good 1950's (6.0/6.4ma)
(!!) 12AT7 Brimar black plates NOS/70-75% 1955 (5.6/5.8ma)
(slightly microphonic tube) 12AT7 Brimar UK black plates "D" getter halo copper grid posts used/good 1955 era (7.2/8.4ma)
12AT7 East Germany branded "M" Mühlhausen NOS 1970's (7.2/7.6ma)
(!) 12AT7 East Germany branded "M" Mühlhausen NOS 1970's (8.4/9.0ma)
12AT7 East Germany branded "M" Mühlhausen used/tests like new stain on glass 1970's (9.4/9.6ma) (high Ma and Gm)
(!!) (Recommended Single) 12AT7=ECC81 Mullard shield logo NOS 1970 (8.0/8.4ma)
(!!!!) (Recommended Single) 12AT7=ECC81 Mullard UK NOS 1966 (9.6ma/8.6ma)
(!!!!) (Single) 12AT7=ECC81 RFT East German branded Telefunken NOS 1974 (7.5/8.5ma)
(!!) (Good Value) 12AT7=ECC81 Siemens Halske Germany NOS 1970 (10.3/11.0ma)
(!!!) (Recommended Single) 12AT7 Fisher Telefunken Germany <> bottom NOS 1964 (7ma/11ma) (recommended for mic)
(!!!) (Single) 12AT7 GE gray plate NOS 1981 (8.4ma/6.8ma)
(!!!) (Recommended Single) 12AT7 GE NOS 1981 (7.0/6.8ma)
(!!) (Best Value) 12AT7 Matsushita JAPAN rebranded Mullard BVA England NOS copper grid posts 1970's (7.6/7.0ma)
(!!) 12AT7 Knight by Mullard NOS 1966 (8.8/9.4ma)
(!) 12AT7 Mullard Heath "D" getter used/good 1959 (6.4/7.6ma)
(!) 12AT7 Mullard Heath "D" getter used/like new 1960 (8.0/9.6ma)
(!!!) (Best Value) 12AT7 Mullard UK NOS 1969 (9.4/7.6ma)
(!!) (Recommended Single) 12AT7 Amperex by Mullard NOS 1966 (8.8ma/10.8ma)
(!!) (Recommended Pair) 12AT7 RCA gray plates NOS 1960's (9.4/10.5ma and 9.5/8.7ma)
12AT7 Siemens Halske Germany D getter NOS 1957 (6ma/8ma)
(!) (Best Value Single) ECC81=12AT7 Siemens Halske Germany "D" getter 1960 era used/good (8.8/7.5ma)
(!!) (Good Value) 12AT7 Telefunken Diamond Bottom used/good early 1960's (7.8ma/10.8ma)
(!!!) (Recommended Single) 12AT7 Telefunken Germany <> bottom NOS 1960 (9.6ma/10.2ma)
(!!!) (Best used single) 12AT7 Telefunken Diamond Bottom used/good 1960's (10.0ma/10.8ma)
(!!) (BEST VALUE) 12AT7 Telefunken Germany used/good 1965 (9.2ma/8.4ma)
(!!) (~ Best Value ~) 12AT7 Toshiba JAPAN black plates rebranded CM Curtis Mathes NOS 1960's copper grid posts (9.0/9.2ma)
(!!!) (Recommended Single) 12AT7 Tungsol rebranded AKRAD "U" getter NOS 1956 (6.2/6.6ma)
(!) (~ Best Value ~) JG-12AT7WA=6201 GE gray plates triple mica "U" getter low hours/like new 1958 (8.8/10.6ma)
(!!!) (Best Mullard Single) 12AT7WA=CV4024=M8162 Mullard UK NOS 1964 (14/10ma)
(!!!!) (Recommended Single) 12AT7WA Mullard NOS wide ribbed plates like CV4024 Mullard 1978 (7.0/7.8ma)
(!) (Best Value) 12AT7WA Raytheon black plates - triple mica - O getter halo 1965 era like new (8.5/9.2ma)
(!!) (Recommended from 1950's) 12AT7WA Sylvania gray plates triple mica "D" getter halo tests like new 1950's (9.4/12.0ma)
(!!) (Recommended from 1964) 12AT7WA Sylvania NOS 1964 (7.0/8.4ma)
(!!) 12AT7WC Raytheon NOS black plates triple mica 1975 (7.2/7.4ma)
(!!) 12AT7WC Raytheon NOS black plates triple mica 1975 (7/11ma)
12AU6 GE NOS 1960 (10.2ma)
12AU6 RCA NOS 1961 (7.3ma)
12AU6 Sylvania NOS 1960's (9.2ma)
12AU6 Sylvania NOS 1960's (8.6ma)
12AU6 Sylvania NOS 1960's (9.4ma)
(!!) (Best Single) 12AU6 Telefunken Diamond <> Bottom "Selected" sticker on tube NOS (8.8ma)
(!!) (BEST PRICE) 12AU6 US Brands NOS (10 tubes for $29.99)
12AU6 US Brands NOS (50 in stock)
(!!!!) (Best Bugle Boy Single 1959) 12AU7 Amperex Bugle Boy England (Mullard) long plates with "D" getter like new 1959 (12.4/9.8ma)
(!!!) (Single) 12AU7 Amperex Bugle Boy Holland used/good 1965 (8.0/7.6ma)
(!!!!) (Bugle Boy Single 1958) 12AU7 Amperex Bugle Boy Holland long plates with "D" getter 1958 used/good (7.8/7.0ma)
(!!!) (Best Value Single 1958) 12AU7=ECC82 Brimar made for Arkay England ribbed plates 1958 (8.2/10.8ma)
(!!!) 12AU7=ECC82 Brimar BVA UK ribbed plates like new 1958 (8/9ma)
(!) 12AU7A=ECC82 GE Brimar ribbed plates used/good 1967 (9.5/9.8ma)
(!) 12AU7=ECC82 Miniwatt France used/good 1970 (10/9.6ma)
(!!!!) (Best Pair 1974) 12AU7=ECC82 Mullard Philips UK ribbed plates NOS 1974 1-5% matched (9.8/9.4ma and 9.5/10.5ma) (Rogue, Hovland, Audio Note)
(!!!!) (Recommended Single) 12AU7=ECC82 Mullard UK ribbed plates NOS 1970 (10.4/8.6ma)(smooth rich sound)
(!!!) (Best Value used) 12AU7=ECC82 Mullard UK branded Philips Miniwatt ribbed plates used/good 1962 (8.2/10.4ma)
(!!!!) (Best Value Single) 12AU7=ECC82 Mullard UK ribbed plates like new 1965 (10/12.8ma) (smooth rich sound)
(!!!!) (Best Single) 12AU7=ECC82 Mullard UK ribbed plates NOS 1972 (12.2/13.6ma) (same Gm) (smooth rich sound)
(!!!) (Recommended Single) 12AU7=ECC82 Mullard UK branded Philips NOS 1969 (9.0/9.2ma) 1-2% section balance
(!!!!) (Best Value Single) 12AU7=ECC82 Philips by Mullard UK ribbed plates used/good 1969 (8.2/8.2ma) 1% section balance
(!!!) (SINGLE) 12AU7=ECC82 RT Radio Technique France long plates 1958-1959 (11.6/9.8ma) (close Gm)
(!!!!!) (BEST PAIR) 12AU7=ECC82 Telefunken Germany smooth plates NOS 1961-1965 1-5% matched (10.5/12.0ma and 12.2/10.2ma)
(!!!) (Best Value Single) 12AU7=ECC82 Telefunken smooth plates like new 1963 (10/8.4ma)
(!!!) (Smooth Single) ECC82=12AU7 Ediswan Valve by Brimar England NOS ribbed plates large "O" getter halo 1962 (11.4/11.8ma)
(!!!) 12AU7 EICO Holland used/good 1961 (8.0/9.6ma)
(!!!!) (Single) ECC82=12AU7 Philips Miniwatt Holland "O" getter 1965 (11.5/12.0ma)
(!!!!) (Long Plate Single) 12AU7 Mullard Heath UK long plates "O" getter used/good 1959 (8.8/9.0ma)
(!!!!!) (Recommended Single) 12AU7 Mullard UK "long plates" and "O" getter 1958 (10.8ma and 11ma) (High mA and Gm)
(!!!!!) (2nd Best Pair 1960's) 12AU7 Mullard UK NOS 1965-1966 same build (10.2/12.4ma and 10.6/12.0ma) (Rogue, Hovland, Audio Note)
(!!!) 12AU7WA Mullard branded Chelmer Valve used/good 1961 (7.7/8.8ma)
(!!!) (recommended Pair) 12AU7=ECC82 Mullard UK NOS 1963-1966 (10.8/10.2ma and 11.8/10.7ma) (Same Gm)
(!!!!) (Best Value Pair) 12AU7 Philips Holland NOS 1971-1972 dimpled disc halo (10.2/10.6ma and 11.2/11.6ma)
(!!!!) (Recommended Pair 1964) 12AU7=ECC82 Philips Miniwatt Holland NOS "o" getter halo 1964 (10.4/10.0ma and 10.2/9.8ma)
(!!!!!) (Holland Single) 12AU7 Pope Holland NOS 1971 dimpled disc halo (12/13.4ma)
(!!) (#1 12AU7 Raytheon from 1954) 12AU7 Raytheon gray ribbed plates "D" getter halo NOS 1954 (10.6/11.2ma)
(!!) JRC-12AU7 RCA NOS long gray plates mid-1950's "D" getter (9/11.6ma)
(!!!) (SINGLE) 12AU7 RCA tall black plates "D" getter used/good 1950's (9.8/8.2ma)
(!!!!) (Good Single 1950) 12AU7 Sylvania black plates "D" getter NOS 1950 (11/12.8ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.8/10ma)
(!!) (Best Value Single) 12AU7 Sylvania NOS 1960's (10.2/10.6ma)
(!!) 12AU7A CBS black plates NOS 1960 era (9.5/11.8ma)
(!!!!) (Recommended Pair) 12AU7A=ECC82 Mullard rebranded "GE" and "Zenith" ribbed plates NOS 1966 (9.8/11ma and 10.4/10.5ma) (smooth rich sound)
(!!!!) (SINGLE) 12AU7A GE NOS 1963 copper grid posts (8.9/10.2ma)
(!!!) (Recommended Pair) 12AU7A GE NOS 1965-1975 (8.8/8.8ma and 9.2/8.8ma) (Same Gm) (smooth and warm)
(!!!!) (Recommended Pair) 12AU7A GE NOS 1958 (9.5/9.3ma and 10.6/9.2ma) (Rogue)
(!!!) 12AU7A GE "U" getter like new 1959 (10.8/10.2ma)
(!!!) 12AU7A GE "U" getter low hours/tests like new 1957 (10.0/8.8ma)
(!!!!) (BEST SINGLE 1985) 12AU7A GE NOS 1985 copper grid posts (9.2/9.4ma) 1-2% section balance
(!!!) (Best pair #3) 12AU7A GE NOS 1958-1965 (10/10.6 and 10/11.6ma) (close Gm)
(!) (slightly microphonic single) 12AU7 Hitachi JAPAN branded IEC Mullard NOS ribbed plates 1968 (9.4/11ma)
(!) 12AU7A Hitachi JAPAN branded Realistic Lifetime NOS ribbed plates 1960 era (9.2/12.2ma)
(!!) (slightly microphonic) 12AU7A Raytheon black ribbed plates "D" getter halo black coated glass 1951 (8.8/9.6ma)
(!!) (#1 12AU7A Raytheon 1960's single) 12AU7A Raytheon Uniline gray ribbed plates "O" getter NOS 1960's (8.2/11ma)
(!!) (Recommended Single) 12AU7A RCA clear top NOS 1973 (11.6ma/12.6ma) (High Gm)
(!!!) (Best Single) 12AU7A RCA clear top NOS 1973 (10.8/11ma) (same Gm) 1-2% section balance
(!!) 12AU7A RCA clear top used/good 1960's (7.4/8.6ma)
(!!) (Best Value Pair) 12AU7A RCA MEXICO NOS "TOP GETTER" original boxes 1970's (9.2/10ma and 8.7/9.4ma)
(!!!) (Best Value Pair) 12AU7A RCA NOS 1960's faded printing (9.3/11.8ma and 10.6/9.0ma)
(!!!!!) (Best Value Pair) 12AU7A RCA NOS 1964-1965 (8.2/11ma and 8.8/10.4ma)
(!!) (SINGLE) 12AU7 RCA long plates D getter NOS 1950's (9.2/9.8ma)
(!!!!) (Recommended Single) 12AU7A RCA clear top NOS 1969 (10.6/12.0ma)
(!!!) (Recommended Single 1957) 12AU7A Sylvania gray pinched plates "D" getter halo NOS 1957 (9.2/10.2ma)
(!!!) (Recommended Single 1957) 12AU7A Sylvania gray pinched plates "D" getter halo NOS 1957 (8.3/9.0ma)
12AU7A Sylvania NOS 1960 era (11.6/10ma)
12AU7A Sylvania NOS 1970's (10.6/9.2ma)
12AU7A Sylvania NOS 1970's (9.0/9.1ma)
(!!) (Best Single) 12AU7A Tungsol tall ribbed plates NOS "O" getter halo 1960 era (9.8/9.6ma)
(!!!) (slightly microphonic) 12AU7A Westinghouse black plates "D" getter halo 1964 NOS (9.6/10.6ma) (similar to RCA black plates)
(!!!) (Recommended Black Plates) 12AU7A Westinghouse black plates 1960 era rebranded United 1981 "D" getter halo (8.4/9.8ma) (similar to RCA black plates)
(!!) (Best Single) 12AU7A Westinghouse gray plates "O" getter halo 1960's NOS (10.6/11.2ma)
(!!) (Best Single) 12AU7WA=6189 Sylvania NOS 1960's (10/10ma)
(!!) 12AU7WA=6189 Sylvania NOS 1960's (8.8/9.0ma)
12AV6 Lindal Japan NOS (43/32)
12AV6 Sylvania NOS (1.1ma Gm=1500)
12AV6 Tungsol used/good 1950's (43/32)
12AV7 GE gray plates U getter NOS 1963 (13.5/14.0ma)
(!!) (BEST PAIR) 12AV7 Raytheon NOS 1960 era (19/18.2ma and 18/20.4ma)
(Best Single) 12AV7 Raytheon black plates D getter NOS 1950's (21/19ma)
12AV7 US Brands NOS (27 in stock)
12AV7 Westinghouse by GE gray plates U getter NOS 1963 (13.0/14.8ma)
12AV7 Westinghouse by GE gray plates U getter NOS 1963 (13.5/17.6ma)
(!!) 12AX3 RCA NOS short bottle branded Sylvania and GE same build (1 pair)
12AX3 Sylvania branded GE low hours like new
12AX3 Sylvania NOS
12AX4GTA RCA NOS 1960 era (1 in stock)
12AX4GTB GE NOS 1970's (2 in stock)
12AX4GTB Raytheon NOS 1960's (4 in stock)
12AX4GTB Raytheon JAPAN NOS 1960's
12AX4GTB Sylvania NOS (6 in stock) (damper diode)
12AX4GTA/GTB US Brands used/good (25 in stock) (damper diode)
(!!) (Best Value Holland 1959) 12AX7 ADZAM Holland NOS 1959 large "O" getter halo (.8/1.1ma and Gm=1400/1600)
(!!!!) (Recommended Single 1959) 12AX7 BRIMAR BVA England like new gray ribbed plates large "O" getter 1959 (1.1/1.0ma) (Gm=1500/1600)
(!!!!!) (Good Value Single) 12AX7 BRIMAR BVA England narrow ribbed plates like new 1959 (1.0/1.2ma)
(!!!) 12AX7 BRIMAR England BVA ribbed plates used/good 1960's (0.8/1.0ma and Gm=1400/1500)
(!!!) 12AX7 BRIMAR England BVA ribbed plates used/good 1960's (0.9/1.1ma and Gm=1350/1500)
(!!!!) (Recommended Single 1955) 12AX7 BRIMAR England like new gray ribbed plates "D" getter 1955 (1.1/0.9ma) (Gm=1700/1500)
(!!!!) (Recommended Single) 12AX7 Brimar BVA England narrow ribbed plates used/good 1959 (1.1/1.0ma and Gm=1450/1350)
(!!!!!) (Recommended Single) 12AX7 BRIMAR BVA England NOS narrow ribbed plates NOS 1960 (1.4/1.5ma) (Highest mA and Gm)
(!!!) (Best Value Single) 12AX7=ECC83 FISHER HOLLAND large "O" getter halo 1961 used/good (Gm=1500/1600 and .9/.9ma)
(!!!) (Good Value Single) 12AX7=ECC83 Mullard GE UK ribbed plates used/good 1966 (.8/.9ma and Gm=1450/1600)
(!!!!) (Slightly microphonic single) 12AX7=ECC83 Mullard UK branded Philips ribbed plates NOS 1962 (161 Series) (1.0/1.2ma and Gm=1600/1650)
(!!!) 12AX7=ECC83 Mullard UK "long plates" with "D" getter used/50-60% (0.6/0.7ma Gm=900/1000 - low Gm) (mC1 series)
(!!!!!) (Best Mullard Pair) 12AX7=ECC83 Mullard UK ribbed plates NOS 1970-1974 (1.2/1.3ma and 1.2/1.1ma) (same Gm)
(!!!) (Recommended Single) 12AX7=ECC83 Mullard UK old logo copper grid posts used/good 1963 (.9/1.0ma and Gm=1500/1500)
(!!) (Best Value Single) 12AX7=ECC83 Mullard UK copper grid posts used/good 1965 (Gm=1400/1400)
(!!!!!) (Best Value Pair) 12AX7=ECC83 Philips Holland like new 1968 same date codes (1.5/1.7ma and 1.7/1.8ma) (Highest mA and Gm) 1-3% matched
(!!!!!) (Best Pair 1971) 12AX7=ECC83 Philips Holland ribbed plates "O" getter halo NOS 1971 same date codes (1.4/1.4ma and 1.5/1.5ma) (close Gm)
(!!!!) (Best Single 1961) 12AX7=ECC83 Philips Miniwatt Holland 1961 large "O" getter halo NOS (1.8/1.3ma and Gm=2100/1700)
(!!!!!) (Best Holland Pair) 12AX7=ECC83 Philips Miniwatt Holland like new "O" getter halo 1961 (1.4/1.6ma and 1.4/1.5ma) (Highest mA and Gm) 1-2% matched
(!!!!) (Best Value Pair 1965 era) 12AX7=ECC83 Philips Miniwatt Holland like new 1964-1965 era (1.3/1.2ma and 1.1/1.2ma)
(!!!) (Best Value Single) 12AX7=ECC83 SIEMENS HALSKE GERMANY used/good 1966 (0.8/0.9ma)
(!!!!) (Best Value Pair #2) 12AX7=ECC83 Telefunken Germany <> bottom branded GAP/R Computor tube <> bottom smooth plates used/good 1964 era (0.8/0.8ma and 0.8/0.8ma)
(!!!!) (Best Pair) 12AX7 EI Yugoslavia Smooth Plates TELEFUNKEN copy NOS 1981 (1.1/1.1ma and 1.0/1.2ma) 1-5% matched
(!!) (Best Value Single) 12AX7 EI Yugoslavia Smooth Plates TELEFUNKEN copy NOS 1981 (1.0/1.5ma and Gm=1700/2100)
(!!!) (Best Value Single) 12AX7 Fisher Telefunken ribbed plate used/good 1960 era fair printing (Gm=1400/1600 and 0.9/1.1ma)
(!!!) (Best Single 1954) JG-12AX7 GE gray ribbed plates "U" getter 1954 used/tests like new (Gm=1500/1600 and 1.1/1.1ma)
(!!!!) (Best Single 1958) 12AX7 GE tall gray ribbed plates "U" getter 1958 like new (Gm=1800/1800 and 1.3/1.3ma) 1% section balance
(!!!!) (Best Pair) 12AX7 GE branded 12AX7A International NOS 1977 (1.3/1.3mA and 1.4/1.4ma) (Same Gm) 1-2% matched
(!!!!) (Recommended Pair) 12AX7 Philips and Valvo Holland NOS 1965-1966 era (1.2/1.1ma and 1.3/1.2ma)
(!!!!) (Best Value 1965) 12AX7 Philips Miniwatt Holland like new 1965 (Gm=2000/2000 and 1.6/1.7ma) (Highest mA and Gm)
(!!!!) (Recommended Single) 12AX7 RCA black plates branded GE "U" getter NOS 1956 (1.1/0.9ma and Gm=1600/1400)
(!!!) (Best Single 1950's) 12AX7 RCA black plates "D" getter tests like new mid-1950's (1.5/1.3ma and Gm=1800/1600)
(!!!) (Good Value) 12AX7 RCA "long gray plates" with "D" getter used/good 1960 good printing (0.6/0.7mA and Gm=1400/1500)
(!!!) (Recommended Single) 12AX7 RCA "tall gray plates" and "D" getter halo branded Raytheon used/good 1950's (Gm=1900/2100) (1.3/1.7ma)
(!!!) (Best Value Single) 12AX7=ECC83 SIEMENS HALSKE GERMANY used/good 1967 (0.8/0.9ma)
(!!) (Good Value) 12AX7 Siemens Halske Germany rebranded "BOGEN" used/good 1960 (161 Series) (Gm=1400/1500 and 0.8/0.9ma)
(!!!) 12AX7 Sylvania 1960-1965 used/tests like new small mica flake inside tube (Gm=2400/2800)
(!!!) (Best Single 1962) JHS-12AX7 Sylvania NOS 1962 (Gm=2600/2500 and 1.8/1.9ma)
(!!!) (Best Sylvania 1955) 12AX7 Sylvania pinched black plates "square" getter halo NOS 1955 (Gm=1500/1700, 1.0/1.1ma)
(!!!!) (Best Pair #2 - best value) 12AX7 Telefunken Germany <> bottom ribbed plates used/very good 1960 era (0.9/1.0ma and 1.0/1.1ma) 1-5% matched (close Gm)
(!!!!) (Best Single) ECC83=12AX7 Telefunken Germany <> bottom smooth plates 1964 (1.3/1.5ma and Gm=1700/1800)
(!!!!) (Best Value Single) 12AX7 Telefunken Germany smooth plates branded DYNACO like new 1964 (Gm=1600/1800 and 0.9/1.4ma)
(!!!!) (Best Tungsram Single) ECC83=12AX7 Tungsram Hungary NOS 1982 (1.6/1.5mA and Gm=2100/2000) (high Ma and Gm)
(!!) 12AX7A/7025 Sylvania branded RCA NOS 1970's (Gm=2100/2000)
(!) (Best Value) 12AX7A China used/good 1990's no printing (0.9/1.1mA and Gm=1600/1700)
(!) (MULLARD CLONE) 12AX7=ECC83 Matsushita Japan NOS 1960's (Gm=1600/1500 and 1.2/1.0ma) (similar to Mullard)
(!!) (Good Value Single) 12AX7A GE NOS 1976 (0.9/1.3mA and Gm=1400/1800)
(!!!) (Good Value Single) 12AX7A RCA ribbed plates used/good 1960's faded printing (Gm=1400/1700 and 0.8/1.1ma)
(!!!) (Recommended Single) 12AX7A RCA gray ribbed plates NOS 1971 (Gm=1600/1800 and 1.2/1.4ma)
(!!!) (Recommended Single) 12AX7A Sylvania NOS 1970's (Gm=2500/2800 and 2.2/2.7ma)
(!!!) (Recommended Single) 12AX7WA=E83CC SIEMENS HALSKE GERMANY triple mica used/tests like new 1969 (1.2/1.0ma)
(!!!!) (Best GE Single 1955) 12AY7 GE NOS 1955 (3.5/2.8ma) (Tweed) (High Gm)
(!!!) 12AY7 GE NOS rebranded Raytheon 1960's (2.8/3.4ma)
(!!!) (Best Single #1) 12AY7 GE NOS rebranded Raytheon 1960's (2.8/2.5ma)
(!!!!) (Recommended Single) 12AY7 GE NOS 1960's (2.2/2.5ma)
(!!!!) (Good Value) JG-12AY7 GE box plates like new 1953 (3.3/2.5ma)
(!!) JG-12AY7 GE "D" getter 1956 used/good (2.1/2.3ma)
(!!) (BEST VALUE) 12AY7 GE NOS 1966 (2.3/1.9ma)
12A7 US Brands NOS (15 in stock)
(!!!!) (BEST RCA Single) 12AY7 RCA NOS gray plates 1971 (2.2/2.2ma) (Fender, Apex) 1% section balance
(!!!) (Recommended Single) 12AY7 Tungsol tall gray ribbed plates rebranded Raytheon NOS "D" getter 1950's (3.3/4.0ma)
(!!) (#Recommended Single) 12AZ7 Tungsol black plates "U" getter halo NOS mid-1950's (9.0ma/9.2ma) 2% section balance
(!!) (Good Value Single) 12AZ7 Tungsol black plates "U" getter halo NOS 1950's (7.5ma/7.5ma)
(!!!) (Best Single) 12AZ7 Tungsol black plates "D" getter halo NOS 1955 (12ma/14ma)
(!!!) (Recommended Pair) 12AZ7A GE gray plates NOS 1969-1970 (8.2/8.0ma and 8.7/8.8ma) (McIntosh MC275)
(!!!) (Best Pair) 12AZ7A Toshiba branded Raytheon Japan gray plates NOS 1960's (11.3/12.3ma and 11.4/11.8ma)
12AZ7A RCA black plates NOS 1975 (7.6/9.2ma)
12AZ7A RCA branded Zenith black plates "D" getter NOS 1966 (8.0/8.8ma)
(!!!) (Recommended Pair) 12AZ7A Sylvania black plates NOS 1960's same build (8.2/9.8ma and 8.4/9.8ma))
(!!!) (Best Sylvania Pair) 12AZ7A Sylvania black plates NOS 1960's (14.2/14.6ma and 12.6/12.8ma)
(!) (Single) 12AZ7A Tungsol gray plates "O" getter halo NOS 1960 era (8.4ma/9.0ma)
(!!) (Recommended Pair) 12B4A GE NOS 1962-1970 (36ma and 36ma)
(!!) (Recommended Pair) 12B4A GE NOS 1960's - 1970's same build (30ma and 30.5ma)
(!!!) (Best Pair) 12B4A GE NOS 1960's (47ma and 48ma)
(!) (Pair) 12B4A GE NOS 1960's (37ma and 38.5ma)
(!!!!) (Pair) 12B4A GE NOS rebranded Raytheon and RCA 1960's (35ma and 37.5ma) (same Gm)
12B4A RCA NOS 1960's (31.5ma)
12B4A Sylvania NOS 1960's (33ma)
(!) (Recommended Pair) 12B4A Sylvania NOS 1960's (26ma and 27ma)
(!!!) (Best Pair) 12B4A GE NOS 1962-1977 same build (52ma and 53ma)
12BA6 Brimar BVA England used/good 1960's (9.2ma)
12BA7 NOS (20 in stock)
(BEST PRICE) 12BA7 NOS (4 for $9.99)
12BE3 GE branded Dumont NOS (1 in stock) (12AX3 sub)
12BE3 US Brands NOS (4 in stock) (12AX3 sub)
(!!) (Best Pair) 12BE6 GE branded Brimar NOS 1960's (2.6ma and 2.6ma) (Highest ma and Gm)
12BE6 Motorola by Toshiba Japan tests like new 1965 (1.9ma Gm=1000)
12BF6 US Brands NOS (3 in stock)
(!!) (SINGLE) 12BH7 CBS branded Arcturus Black Oval Plates large "U" getter NOS 1950's (10.2ma/13.0ma)
(!!) (SINGLE 1953) 12BH7 GE NOS gray oval plates "U" getter 1953 NOS (9/12ma)
(!!) (Single) 12BH7 GE Delco gray oval plates "U" getter NOS 1950's (7ma/8ma) (Quicksilver, Wells, Doshi, McIntosh)
(!!!) 12BH7 GE Silvertone gray oval plates NOS "U" getter 1953 (8.2/8.0ma)
(slightly microphonic) 12BH7 GE Zenith NOS "U" getter 1953 (10.0/10.6ma)
12BH7A Matsushita Japan branded Amperex Holland NOS 1970's (8.8ma/9.6ma)
(!!!) (SINGLE) 12BH7A Brimar UK rebranded GE short ribbed black plates 1968 (11/10.2ma)
(!!!) (Single) 12BH7A CBS Oval Black Plates "O" getter used/good 1960 (7.3/9.6ma)
12BH7A Channel Master Japan by Hitachi NOS 1962 (10/14ma)
(!!) (Good Value Single) 12BH7A GE Daystrom gray oval plates low hours like new 1960's (9.2/9.0ma) (Same Gm)
(!!!!) (Best Single) 12BH7A GE ribbed plates NOS 1980 (10.0/10.2ma) 1-3% section balance
(!!!!) (Single) 12BH7A GE gray oval plates NOS mid-1960's (11.5/16ma)
(!) 12BH7A GE gray oval plates "O" getter halo used/good 1964 (7.2ma/8.5ma)
12BH7A GE gray oval plates used/good "U" getter 1950's (7.6/7.8ma)
(!!) (Best Value Single) 12BH7A Hitachi Japan 1970's branded Westinghouse NOS 1984 (11.8/12.9ma) (McIntosh, Quicksilver, Art Audio, Wells)
(!!) (SINGLE) 12BH7A Philco by Sylvania gray plates NOS 1967 (10/11.2ma)
(!!) 12BH7A Philco Sylvania gray oval plates "O" getter halo used/good 1962 (6.5/7.3ma)
(!!!) (Recommended Single) 12BH7A Raytheon black oval plates "D" getter NOS 1950's (9.0ma/8.6ma)
(!!!!) (Single 1955 era) 12BH7A RCA narrow black plates used/very good "U" getter halo 1955 era (8.6/10ma) (1st series made) (rare)
(!!!!) (Single 1950's) 12BH7A RCA branded Westinghouse narrow black plates NOS "U" getter mid-1950's (10.6/7.4ma) (1st series made)
(!!) (Good Value Pair) 12BH7A RCA gray plates used/good 1960's (10.4/82.ma and 9.4/9.5ma) (close Gm)
(!!) 12BH7A RCA gray plates used/good 1960's (8.0/11.2ma)
(!!) 12BH7A RCA gray plates used/good 1970 era (8/9ma)
(!) (SINGLE) 12BH7A RCA used/very good 1960's (7.4/9.2ma)
(!!!) 12BH7A RCA branded Zenith NOS 1970 era (10/13.2ma)
(!!!!) (Best 12BH7A 1957) 12BH7A Sylvania gray oval plates "square=D" getter halo NOS 1957 (13.0/12.7ma)
(!!!!) (Recommended Single) 12BH7A Sylvania gray oval plates "O" getter halo NOS 1962 (10.2/11.8ma)
(!!!) (Best Value Single) 12BH7A Sylvania branded GE black oval plates "U" getter 1950's tilted glass (11.0/14.2ma)
(!!!!) (Recommended Single) 12BH7A Sylvania Hammond gray oval plates "D" getter halo used/like new 1959 (9/9ma)
(!!!!!) (Good Value Pair) 12BH7A Sylvania gray pinched plates NOS and used 1970 era (7.6/8.0.4ma and 7/7ma)
(!!!!) (Best Single) 12BH7A Sylvania rebranded GE black oval plates "U" getter NOS 1956 era (11.2/14ma)
(!!) 12BH7A Sylvania rebranded Westinghouse NOS pinched plates 1960's 1% section balance (7/7ma)
(!!!!) (Single) 12BH7A Sylvania NOS gray oval plates NOS 1965 era (8.2/8.4ma) 1-3% section balance
(!) 12BH7A Toshiba rebranded "Bell and Howell Schools" like new 1960's (9/10.4ma)
(!!) 12BH7A Westinghouse black plates "U" getter used/good 1950's (6.2/7.2ma)
(!!!!) 12BH7A Westinghouse gray ribbed plates used/good "U" getter 1960 era (8.4/11ma)
12BF11 US Brands NOS (3 in stock)
12BL6 US Brands NOS (4 in stock)
12BV7=12BY7A Tungsol NOS 1960 era (35ma)
(!!) 12BY7 Sylvania coated glass NOS 1953 faded printing (21.5ma)
12BY7A GE Motorola NOS 1973 (21ma)
(!!!) (Best Pair) 12BY7A GE NOS 1970 (35ma and 35.5ma)
12BY7A GE NOS 1970 (37ma)
12BY7A Motorola by Sylvania NOS 1960's (21ma)
12BY7A RCA used/good 1960's (21ma)
(!) (Recommended Single) 12BY7A Tungsol NOS 1960 era (21ma)
(!!) (GOOD SINGLE) 12BZ7 CBS NOS large "U" getter 1955-1960 faded printing (1.9/2.5ma)
(!!!) (Recommended Pair) 12BZ7 National Union branded Admiral and Sylvania "U" getter NOS 1960-1961 era (1.6/1.6ma and 1.7/1.8ma)
(!!!) (Recommended Pair) 12BZ7 RCA NOS 1964 and 1968 (1.8/1.8ma and 1.8/1.9ma)
12C30T Amperite Time Delay Relay (6 in stock)
12DB5 US Brands NOS (6 in stock)
12DE8 NOS (5 in stock)
12DQ6 GE NOS 1958 (98ma)
12DQ6 GE used/good 1956 (48ma)
(!!) (Best Pair) 12DT8 RCA gray plates NOS 1970's (11/12.2ma and 11/12.6ma)
12DT8 RCA gray plates NOS 1970's (12.6/14.0ma)
12DT8 RCA gray plates NOS 1970's (12.2/16.4ma)
12DT8 RCA black plates NOS 1970 (23.0/24.4ma) (highest Ma and Gm)
12DU7 US Brands NOS (5 in stock)
12DW4A GE NOS 1960's (4 in stock)
(!!!) 12DW7=7247 CBS ribbed plates NOS 1960 (0.9ma/11.4ma)
12DW7 Sylvania branded Tungsol NOS 1960's (1.3/9.2ma)
12FQ8 Realistic Lifetime by GE gray plates like new 1960's (1 in stock)
12FQ8 Wurlitzer by GE black plates used/good 1961 (10 in stock)
12FQ8 Wurlitzer by GE black plates "U" getter used/good 1960 (10 in stock)
12FQ8 Wurlitzer by RCA gray plates used/good 1964 (28 in stock)
12GK17 Raytheon Japan NOS (1 in stock)
12HG7=12GN7A US Brands NOS (6 in stock)
12HG7=12GN7A RCA NOS (27ma)
12HG7=12GN7A Sylvania NOS (42ma)
12J5GT Ken Rad NOS 1940's (8ma)
12J5GT RCA NOS 1954 slightly tilted glass (11ma)
12J5GT RCA NOS (6.7ma)
(!!) (Best Pair) 12J5GT RCA branded Zenith NOS 1944 (10.2ma and 10.2ma)
12J5GT Sylvania NOS 1940's (9.6ma Gm=2900)
12J5GT Tungsol NOS 1940's (10.6ma Gm=2800)
12J7G Philco Sylvania 1940's like new (100/60)
12J7GT Hytron NOS 1950 era hairline crack in base (102/60)
12J7GT National Union NOS 1950 era very small hairline crack in base (102/60)
12J7GT RCA used/good 1945 era (92/60)
12J7GT RCA used/strong 1948 (100/60)
12J7GT Sylvania Zenith NOS 1954 era hairline crack in base (101/60)
12JN6 GE Dumont NOS 1970 era (70ma)
(!!) (BEST PAIR) 12JN6 GE NOS 1970 era (74ma and 73ma)
(!!) (PAIR) 12JN6 GE NOS 1970 era (62ma and 60ma)
12JN8 Dumont by GE NOS (2 in stock)
12JT6A US Brands NOS (6 in stock)
12L6GT US Brands NOS (20 in stock)
12MD8 NOS (10 in stock)
12Q7G National Union NOS (38/20)
12Q7G Sylvania used/tests like new 1940's (44/20)
12Q7G Zenith by Sylvania NOS 1946-1947 (36/20)
12Q7GT Dumont used/good (34/20)
12Q7GT Philco used/good (35/20)
12Q7GT RCA used/strong (42/20)
12SA7GT Mullard Holland used/good 1960 (3.8ma)
12SA7GT Nat. Union used/good 1950 era (2.8ma Gm=800)
12SA7GT Sylvania used/tests like new 1957 (3.3ma Gm=1100)
12SA7Y RCA brown bottom NOS 1955 (4.7ma)
12SC7 International Canada NOS, probably made by GE (2.3/2.8ma)
12SC7 International Canada NOS, probably made by GE (2.0/2.1ma)
12SC7 Ken Rad NOS 1940's (3 in stock)
12SC7 Philco NOS 1940's (1.8/1.8ma) 1% section balance
12SC7 Philco NOS 1940's (1.8/2.1ma)
12SC7 Sylvania NOS 1940's (5 in stock)
12SF5 US Brands NOS (5 in stock)
12SF5GT GE NOS (9 in stock)
12SF5GT NOS (1 in stock)
12SF7 US Brands NOS (8 in stock)
JAN-CG-12SG7 GE NOS 1959 (10.8ma)
12SG7 GE NOS 1960 (10.4ma)
12SG7 Philco NOS 1952 (13ma)
12SG7 RCA NOS 1952 (13.4ma)
12SG7 Sylvania NOS 1950's (12.2ma)
12SG7 US Brands metal can used (10 in stock)
12SH7 US Brands NOS (12 in stock)
12SJ7 Tungsol metal can NOS 1949 (3.8ma)
12SJ7 RCA NOS 1961 (3.0ma)
12SJ7 RCA metal can NOS 1950's (2.8ma)
12SJ7 Tungsol metal can NOS 1949 (3.3ma)
12SK7GT RCA NOS 1940's (8.6ma)
12SK7GT RCA NOS 1940's (9.0ma)
12SK7GT RCA NOS 1940's (9.2ma)
12SK7GT Rogers Canada used/tests like new 1950's slightly tilted glass (8.8ma)
12SK7GT Sylvania branded Westinghouse chrome top NOS 1955 (8.5ma)
12SK7GT Tungsol used/tests like new 1940's, 50% of base is rusted/tarnished (8.6ma)
12SK7GT Wizard by Sylvania used/good 1940's (7.5ma)
12SK7Y GE NOS 1957 (9.6ma)
12SN7GT CBS NOS 1950's (9.0/9.6ma)
(!!) 12SN7GT Sylvania Philco chrome top black plates NOS 1956 (8.2/8.4ma)
12SN7GT RCA branded CHIEF NOS 1963 (8/9.2ma)
(!!!) 12SN7GTA Sylvania branded RCA used/good 1967 (10/12.5ma)
12SN7GTA GE branded Westinghouse low hours 1960's (7.0/7.4ma)
(!!!) (Recommended Pair) 12SN7GTA GE coin-base side getter NOS 1980 (9.4/10.2ma and 9.8/10.6ma) (Close Gm)
12SN7GTA GE Honeywell gray plates used/good 1960's (6.0/6.8ma)
12SN7GTA GE NOS 1959 (7.2/7.0ma)
12SN7GTA GE NOS 1969 (9/8.2ma)
12SN7GTA GE NOS 1970 era (8.2/7.4ma)
12SN7GTA GE NOS 1974 (10/9.4ma)
12SN7GTA GE NOS 1976 (10.4/10.4ma) 1% section balance
12SN7GTA RCA coin-base branded GE NOS 1980 (12.2/12.2ma) 1-2% section balance
(!) (Single) 12SN7GTA RCA black plates NOS 1960's (8.4/8.0ma)
(!!!!) (Best Single) 12SN7GTA Sylvania branded GE NOS 1960's (11.0/11.4ma) (same Gm)
12SR7 metal can NOS (20 in stock)
12SR7GT National Union NOS 1950 era (10.8ma)
12SR7GT RCA NOS 1940's (11.2ma)
12V6GT Sylvania chrome top NOS 1957 (58ma)
12V6GT Sylvania used/good 1960's (38.6ma)
12V6GT Tungsol branded Raytheon NOS 1960's (62.5ma)
12X4 CBS black plates "O" getter NOS 1960 (48/40 and 50/40)
12X4 GE GM Delco gray plates "D" getter NOS 1960 era (49/40 and 50/40)
12X4 GE gray plates "D" getter NOS 1960 (50/40 and 50/40)
12X4 RCA "O" getter NOS 1963 (46/40 and 46/40)
12X4 RCA black plates "D" getter NOS 1950's faded printing (49/40 and 50/40)
12X4 RCA "D" getter NOS 1961 (47/40 and 48/40)
12X4 RCA Motorola black plates "D" getter NOS 1960 era (48/40 and 49/40)
12X4 RCA NOS 1965 (45/40 and 46/40)
12X4 Silvertone Sylvania "D" getter NOS 1960 era (46/40 and 48/40)
12X4 Sylvania black plates NOS 1960's (48/40 and 50/40)
12Z3 US Brands NOS (7 in stock)
13EM7 GE branded ITT NOS 1960's (2.2/38ma)
13EM7 GE branded Raytheon NOS 1960's (1.6/40ma)
(!!) 13EM7 RCA black base black plates NOS 1968 (2.0ma/28ma)
(!!) (Best Single) 13EM7 RCA coin-base black plates NOS 1970's (2.7/47.2ma)
13EM7 Sylvania branded GE NOS 1963 (1.5/34ma)
13EM7 Westinghouse Canada NOS same build as RCA 1970 (1.3/38ma)
(!!) (BEST SINGLE) 13EM7 Sylvania NOS 1960 era (1.4/56ma)
13FM7=15FM7 US Brands NOS (8 in stock)
13GF7A NOS (15 in stock)
1488 Bulb / Lamp US Made NOS (5 in stock)
1492 Bulb / Lamp US Made NOS (5 in stock) (14 Volts)
14A4 CBS NOS 1950's
14A4 RCA NOS 1950's
14A7 Sylvania branded National Union used/good 1947 (92/60)
14A7 Sylvania used/good 1946 (90/60)
14A7 Sylvania used/good 1947 (96/60)
14A7 Sylvania used/very good 1944 (102/60)
14B6 Sylvania NOS 1947 (91/60)
14C5 Sylvania NOS (1 in stock)
14C5 Zenith NOS (1 in stock)
14C7 Sylvania like new 1940's (92/60)
14C7 Sylvania like new 1950 era (96/60)
14C7 US Brands NOS (2 in stock)
14C7 Zenith by Sylvania like new 1940's (91/60)
14E6 NOS (11 in stock)
14E7 NOS (1 in stock)
14F7 Philco black plates like new 1945 )98/60 and 98/60)
14F7 Raytheon by Sylvania gray plates NOS 1952 (95/60 and 97/60)
14F7 Sylvania gray plates like new 1949-1950 (97/60 and 98/60)
14H7 Sylvania NOS 1956
14H7 Hytron NOS (2 in stock)
14L7=UBC41 Valvo by Mullard NOS 1962 (3 in stock)
(BEST) 14R7 RCA Victor NOS 1940's (98/60)
14R7 Zenith by Sylvania NOS 1940's (96/60)
14S7 US Brands NOS (6 in stock)
150uf/25V and 50/50uf/20VDC Aerovox Axial Cap NOS 2.5"L x 1" dia
15FM8 Sylvania NOS
15FY7 US Brands NOS (5 in stock)
15KY8A GE NOS (14 in stock)
15LE8 Raytheon NOS (6 in stock)
15LE8 Tungsol NOS (3 in stock)
160/450/60/5uf@200VDC Mallory FP Cap NOS (4.5" H x 1.375" dia) (FP412.19)
1608 RCA white ceramic base NOS in white box 1940 era (32.5ma)
160uf @ 250V Mallory FP cap NOS (4 in stock) (3" tall x 1" diameter)
1612 RCA NOS 1961 (2 in stock)
1612 RCA NOS 1948 (2 in stock)
(!!!) (Recommended Pair) JAN-1619=VT-164 RCA NOS 1943 some surface rust on metal cans (55ma and 57ma)
(!!!) (Recommended Pair) 1619 RCA NOS 1960-1964 (52ma and 53ma)
(!!) (Good Value PAIR) 1619 RCA NOS 1942-1943 (44ma and 45.2ma)
1622 RCA NOS 1947 some rust on can (67.5ma)
1622 RCA NOS 1948 (71ma)
1622 RCA used/good 1940's (59.5ma)
1625 National Union like new 1940's no printing in white box (85/40)
1625 National Union like new 1940's no printing in white box (72/40)
(!!!) (Best Pair) 1625 National Union NOS 1944 (90/40 x 2 tubes)
(!) (1 Pair) 1625=VT-136 RCA like new mid-1940's (82/40 and 82/40)
(!!!) (Best Pair) 1625=VT-136 National Union NOS 1943-1944 (87/40 and 90/40)
(!!!) (Recommended Pair) JAN-CNU-1625=VT-136 National Union NOS 1940's (80/40 and 78/40)
1625=VT-136 National Union used/good mid-1940's (69/40)
1625=VT-136 RCA NOS 1954 (84/40)
(!) (1 Pair) 1625=VT-136 RCA like new mid-1940's (72/40 and 70/40)
(!) (PAIR) 1626=VT-137 RCA NOS 1940's (31ma and 33.8ma) (Same Gm)
VT-138=1629 RCA NOS 1940's 1/4" tilt bright eye
(!!) (Recommended Single) JAN-CRC-1629 RCA NOS 1940's bright eye
(!!) 1629 RCA NOS 1961 bright eye
(!!) (Bright Eye) 1629 RCA NOS 1957
1632 RCA NOS (5 in stock)
1633 RCA coated glass NOS 1940's
1634=12SC7 Duotriode
1635 RCA coated glass NOS 1950-1953 (2 in stock)
1635 RCA NOS (6 in stock)
1640 RCA Phototube NOS (2 in stock)
1654 low drain HV rectifier (3 in stock)
16GK6 JAPAN NOS (1 in stock)
17241 GE NOS
17A8=19EA8A NOS (4 in stock)
17AV5A NOS (3 in stock)
17AX3 GE branded Raytheon NOS (2 in stock)
17AY3A US Brands NOS (6 in stock)
(!) 17BF11 GE NOS 1983 (78-80/60) (CAYIN)
17BF11 RCA like new (80-82/60) (CAYIN)
17CT3 RCA NOS
17GE5 US Brands (6 in stock)
17JF6 Lindal Japan NOS (1 in stock)
17JM6 and 17JM6A NOS (10 in stock)
(!!) (DISPLAY TUBE) 180 Arcturus Blue 1930 era (does not work - display tube only)
(!!) 180C1=0B2 Mullard England NOS (neon)
180uf @ 350V Aerovox FP cap NOS (2.5" H x 1.375" dia)
1847 Sylvania Lamp / Bulb NOS (10 in stock)
1883 Belvu France Full-Wave Rectifier NOS
(set of 4) 1883 RSD Full-Wave Rectifier NOS (1 set of 4)
1883 RSD Full-Wave Rectifier NOS (5 in stock)
18A5 US Brands NOS (20 in stock)
18AJ10 Dumont by GE Compactron NOS (10 in stock)
18DZ8 Sonotone Japan NOS 1961 (2 in stock)
(1 PAIR) 18FX6 GE NOS 1961-1965 (82/60 and 85/60)
(1 PAIR) 18FX6A GE Admiral/Zenith NOS 1960's (78/60 and 78/60)
(1 PAIR) 18FX6A Raytheon by Toshiba Japan NOS (75/60 and 75/60)
18FX6A RCA NOS (92/60)
18FY6A Sylvania NOS 1960's
18FY6 GE NOS (1 in stock)
18GB5=LL504 Sylvania Holland NOS 1963 (1 in stock)
18GV8=PCL85 NOS (5 in stock)
18RAL1 Raytheon Japan NOS (10 in stock)
19 US Brands NOS (20 in stock)
19 US Brands NOS (4 tubes for $12.99)
197T119AO1 Motorola/GE Planar Triodes NOS (4 in stock)
19AQ5 Sonotone England NOS (4 in stock)
19AU4GTA Mixed Brands NOS (20 in stock) (rectifier)
19BG6GA Sylvamia NOS 1957 (90/60)
19D8=UCH81 European Brands NOS (4 in stock)
19DE3 NOS (8 in stock) (rectifier)
19EZ8 NOS (1 in stock)
(!!!) (#1 19J6 Pair) 19J6 RCA "U" getter halo NOS 1952 same date codes
(!!!) (#2 19J6 Pair) 9J6 RCA NOS 1950's - 1960's same internal plate structure, different getter halo shape
19T8 Sylvania Silvertone NOS 1960 era (3 in stock)
19V8 Sylvania branded International NOS (3 in stock)
19Y3=PY82 Brimar UK NOS (4 in stock) (rectifier)
1A3 US Brands NOS (50 in stock)
1A4P=1A4T RCA NOS (2 in stock)
1A5GT US Brands NOS (10 in stock)
1A6 US Brands NOS (7 in stock)
1A7GT Sylvania NOS 1946 (95/60)
1AD2=1BY2A US Brands NOS (5 in stock)
1AD5 RCA NOS
1AE4 Raytheon NOS (1 in stock)
1AH4 US Brands NOS (3 in stock)
1AY2A NOS (25 in stock)
1B23 Western Electric Spark Gap Switch NOS (7 in stock)
1P28B RCA Photocell NOS (4 in stock)
1B3GT=1G3GT Mixed US Brands NOS (40 in stock)
1B3GT=1G3GT US/Canada used (6 in stock)
1B4 and 1B4P NOS
(BEST PRICE) 1C5GT US Brands NOS (4 for $12.99)
1C5GT US Brands NOS (10 in stock)
1C6 US Brands NOS (3 in stock)
1C7G US Brands NOS (2 in stock)
1D7G NOS (5 in stock)
1E5G=1E5GP US Brands NOS (6 in stock)
1E7G US Brands NOS (4 in stock)
1E7GT US Brands NOS (4 in stock)
1F4 NOS (4 in stock)
1F5G US Brands NOS (7 in stock)
1F6 US Brands NOS (3 in stock)
1G5G US Brands NOS (2 in stock)
1H4G Sylvania NOS 1940's (4 in stock)
1H5GT Hytron NOS 1940's
1H5GT RCA NOS 1950's
1H6G NOS (5 in stock)
1J5G Raytheon NOS
1Kohm / 10 Watt FP10 Corning flame proof resistor (16 in stock)
(BEST PRICE) 1L4=DF92 Various Brands NOS (10 for $29.99)
1L4=DF92 Various US Brands NOS (15 in stock)
(!!!) 1L6 Sylvania branded GE NOS 1973 original box (115/60)
(!!!!) (Best Pair) 1L6 Sylvania NOS 1950 same date codes (20/16 and 19/16)
(!) 1L6 Sylvania NOS 1956 (112/60)
(!) 1L6 Sylvania NOS 1957 smeared printing (20/16)
(!!!) 1L6 Tungsol NOS 1954 (113/60)
1LA4 NOS (20 in stock)
1LB4 Sylvania chrome top NOS 1956 (118/60)
(BEST PRICE) 1LC5 NOS (4 for $12.99)
1LD5 Philco by Sylvania NOS 1940's (112/60)
1LD5 Sylvania NOS 1940's (111/60)
1LD5 Sylvania used/good 1940's no printing (107/60)
1LE3=1LF3 Sylvania branded Ken Rad used/good 1947 (90/60)
1LE3=1LF3 Sylvania branded Philco used/good 1940's (94/60)
1LE3=1LF3 Sylvania branded RCA like new 1952 (118/60)
(BEST PRICE) 1LG5 US Brands NOS (4 for $12.99)
1LH4=VT-177 US Brands NOS (10 in stock)
1LN5 used/good (5 in stock)
1N21 NOS
1N21B NOS
(BEST PRICE) 1N2A=1AU3 NOS (4 for $9.99)
1N4002 diode NOS (10 for $2.50)
1N5GT Hytron NOS
1N5GT Philco NOS
1N5GT RCA NOS (3 in stock)
1P21 RCA Photocell NOS 1957 (2 in stock)
1P22 RCA Photocell NOS 1960's (3 in stock)
1P28 RCA Photocell like new
1P29 RCA Photocell NOS
1P29 Photocell NOS
1P40=930 GE NOS 1960 (Photocell)
1P40=930 RCA NOS 1960 era (Photocell)
1P40=930 RCA NOS 1970's (Photocell) (3 in stock)
1P41=924 RCA Photocell 1957
1P5GT National Union NOS 1950's (119/60) (strong emission)
1Q5GT Tungsol NOS 1940's hairline crack in base (97/60)
1Q5GT Tungsol NOS 1940's (100/60)
1R4 US Brands NOS (4 in stock)
1R4=VT-183 Sylvania used/tests like new (50/40)
(BEST PRICE) 1R5 US Brands NOS (4 for $12.99)
1R5 US Brands NOS (25 in stock)
1RK31 IEC Japan NOS (5 in stock)
(BEST PRICE) 1S5=DAF91 Sylvania NOS (4 tubes for $9.99)
(BEST PRICE) 1S5=DAF91 Mixed US Brands NOS (4 tubes for $9.99)
1S5=DAF91 US Brands NOS (15 in stock)
1T4=DF91 Rogers Canada 1960's
1T4=DF91 RCA used/good (2 in stock)
1T4=DF91 US Brands NOS (10 in stock)
1U4 RCA NOS 1962 (107/60)
(BEST PRICE) 1U5 Brands NOS (4 for $29.99)
1U5 Sylvania NOS (116/60)
1U5 Sylvania NOS (107/60)
1U5 US Brands NOS (11 in stock)
.1uf / 15,000VDC Dearborn axial oil cap NOS (8 in stock)
1uf / 5000VDC GE oil cap used (3 in stock)
1V=6Z3 RCA Victor rectifier NOS (47/40)
1V=6Z3 Silvertone rectifier NOS (49/40)
1V2 Raytheon Japan NOS (10 tubes for $19.99)
(BEST PRICE) 1V2 US Brands NOS (10 tubes for $19.99)
1V2 USA and Japan NOS (35 in stock)
1X2B US Brands NOS (100 in stock)
1X2B US Brands NOS (10 tubes for $24.99)
1X2A US Brands NOS (10 in stock)
20/500V, 20/500V, 10/500V, 10/300VDC Cornell Dubilier FP cap NOS (D0690) (3 sections 500 volts)
20 ohm 20 watt cement power resistor NOS (8 in stock)
10 ohm 20 watt cement power resistor NOS (15 in stock)
200/150/150uf @ 200VDC Mallory metal can cap NOS (FP318.86) (3" H x 1.375" dia) (8 in stock)
200/200/100/10uf@200VDC Mallory WP Cap NOS (4.5" H x 1.375" dia) (WP412.15)
200uf/350V, 50uf/200V, 50uf/200V, 20uf/200VDC Mallory NOS (2.5"H x 1.375" dia) (PFP414.11) (1 in stock)
(!!) (Best Single) 201A=UV-201-A Supertron Hoboken New Jersey NOS 1920's (3.8ma)
(!) 201A Aristocrat NOS 1930's (2.7ma and Gm=900)
(!!!) 201A Silvertone Balloon NOS 1930 era (1.8ma and Gm=500)
(!) 203A Sylvania brass base tests like new 1930's
2050 GE burgundy base NOS 1952
2050A GE NOS 1963 (single)
2050A GE coin-base NOS 1970's (4 in stock)
2050W Raytheon NOS (8 in stock)
2051=VT-109 RCA used/good 1940's smaller getter
2051 RCA test like new 1940's (2 in stock)
2051 US Brands used/test like new (10 in stock)
20AQ3=LY88 Motorola Golden Premium Rated Japan NOS 1970's (8 in stock)
20LF6 GE NOS 1974 (101/60)
20LF6 GE Zenith NOS
(!!) (BEST PAIR) 20LF6 Holland NOS 1971 in Zenith and RCA boxes (101/60 and 102/60)
20LF6 GE NOS 1981 (99/60)
20LF6 Philips/Sylvania NOS (1 in stock)
20LF6 RCA Holland NOS 1969
20LF6 Sylvania NOS (1 in stock)
20LF6 Westinghouse Japan NOS 1980 (1 in stock)
21 ohm / 1/2 watt 1% metal film resistor (roll of 4400)
(!!!!!) (Best Pair #2) JAN-211 GE NOS 1942 original boxes (105.6ma and 106ma) (Ongaku)
(!!!!!) (Best Pair #1) 211=VT-4-C GE NOS 1943 (108.2ma and 108.4ma)
(!!!) 211D=VT-4-B Western Electric nickel base used/60% mid-1920's - reboxed (61.5ma)
212A Western Electric display tube from 1919-1921 era (open filament) probably the only 212A in existence
21GY5 US Brands NOS (13 in stock)
21HB5=21HB5A US Brands NOS (8 in stock)
21JS6A=23JS6A Raytheon Japan NOS (2 in stock)
21JV6 NOS (1 in stock)
21KA6 Mixed Brands NOS (18 in stock)
21KQ6=LL521 Mixed Brands NOS (12 in stock)
21LR8 Mixed Brands NOS (6 in stock)
21LU8 Mixed Brands NOS (8 in stock)
21MY8 Dumont Japan NOS (4 in stock)
221A Amperex NOS in original boxes 1943 (1 in stock)
224 CECO Balloon used/strong 1930's (44/25) (3.0ma Gm=1000)
224 US Made Balloon used/tests like new 1930's no printing (50/25) (5.4ma Gm=1000)
(!!) UX-226 Radiotron Balloon used/65% (3.8ma, Gm=900)
(!!) 227 National balloon used/good, rattle inside base 1930 era (5.3ma)
22DE4 Sylvania NOS slightly faded getter 1960's (82/60)
22DE4 Sylvania branded Tungsol NOS 1960's (102/60)
22JU6 Mixed Brands NOS (12 in stock)
22KM6=22JF6 Sylvania NOS (1 in stock)
22JF6 Mixed Brands NOS (6 in stock)
22KV6A Dumont Raytheon Japan branded made in USA (1 in stock)
22KV6A GE NOS (5 in stock)
22KV6A RCA branded Sylvania black plate low hours/like new (93/60)
(!!!) 231=31 US Made Balloon NOS 1920's (14.2ma)
(!) (#1 231D Best Value Pair) 231D Western Electric NOS 1954 (1.6/1.6ma)
231D Western Electric NOS 1953 (1.6ma)
(!) (#1 231D Best Value Pair) 231D Western Electric NOS 1953 (1.8/1.8ma)
(!) (#2 231D Best Value Pair) 231D Western Electric NOS 1953 (1.7/1.7ma)
235=35 Ken Rad balloon used/good 1930's (34/26)
235=35 National Union balloon used/good 1933 (38/26)
235=35 Silvertone Balloon used/tests like new 1930's (43/26)
23JS6A RCA NOS (1 in stock)
23JS6A RCA used/good (1 in stock)
23JS6A Sylvania NOS (1 in stock)
23Z9 US Brands NOS (25 in stock) (10 for $35)
245=45 Silvertone Balloon engraved base 1930 era used/tests like new (42ma Gm=2230)
(!) 247=47 RCA Balloon used/60-65% 1930's (20ma)
(!) 247=47 Tungsol Balloon used/good 1930's (23.2ma)
(!!!) 249B Western Electric Engraved Base NOS 1930's in 249C box (58/40)
24A Coronado ST-shape used/tests like new 1940's (45/25 and 4.1ma Gm=1100)
24A National Union NOS (5 in stock)
(BEST PRICE) 24A NOS (4 tubes for $49.99)
24 Philco Balloon used/very good 1930's (3.3ma Gm=900)
24A Philco by Sylvania ST-shape used/good 1940's (48/25 and 3.7ma Gm=900)
24A Raytheon NOS (2 in stock)
24A Raytheon NOS 1940's (50/25)
24A RCA Cunningham ST-shape used/tests like new 1940's (49/25 and 4.8ma Gm=1200)
24A RCA Cunningham engraved base NOS 1940 era (3 in stock)
24A Sylvania NOS (2 in stock)
24A Philco by Sylvania ST-shape tests like new 1940's (50/25 and 4.3ma Gm=1000)
250R Kadette ballast used/good (2 in stock)
160/240/240/5uf@200VDC Mallory FP Cap NOS (4.5" H x 1.375" dia) (FP412.13)
250uf@200VDC and 650/50uf@175VDC and 10uf/150VDC Mallory FP Cap NOS (4.5" H x 1.375" dia) (FP412.06)
2518 Clarostat Ballast NOS
257A Western Electric engraved base NOS 1930's (6 in stock) (257A is a 231D with a top cap grid connection)
259 Bulb / Lamp RCA US Made NOS (5 in stock)
25A6 GE metal NOS (3 in stock)
25A6 RCA Victor metal NOS (3 in stock)
25A6G RCA NOS 1940's (85/60)
25A6G US Brands NOS (2 in stock)
25AC5G Raytheon NOS (2 in stock)
25AC5GT RCA NOS 1940's (66/38)
25AC5GT Tungsol NOS 1950 (68/38)
25AC5GT Tungsol NOS (4 in stock)
25AV5GA GE NOS (10 for $59.99)
25AV5GA GE NOS (25 in stock)
25BK5 US Brands NOS (15 in stock)
25BQ6GT=25BQ6GTB US Brands NOS (12 in stock)
25C5 RCA NOS (4 in stock)
25C5 Sylvania NOS (4 in stock)
25C5 Tungsol NOS (1 in stock)
25C6G US Brands NOS (4 in stock)
25CT3 Dumont by RCA NOS (10 in stock)
25E5=PL36 RCA Japan NOS (1 in stock)
25EH5 GE NOS (1 in stock)
25EH5 RCA NOS (1 in stock)
25F5 Dumont by Sylvania NOS (3 in stock)
25F5 Sylvania NOS (1 in stock)
25L6G Arcturus 1940's used/good (62/45)
25L6G GE big bottle faded printing 1940's used/strong (70/45)
25L6G Tungsol 1940's used/good (77/60)
25L6GT GE Lafayette NOS 1960's (92/60)
25L6GT National Union NOS 1952 (86/60)
25L6GT US Brands NOS (4 in stock)
25L6GT Raytheon Japan NOS (1 in stock)
25L6GT Raytheon USA NOS 1955 (90/60)
25L6GT RCA NOS 1963 (98/60)
(Best Single) 25L6GT RCA NOS 1940's (90/60)
25L6GT Sylvania NOS 1947 (67/45)
25L6GT Tungsol NOS 1940's (88/60)
25L6GT Tungsol NOS 1950's (88/60)
25L6GT Tungsol NOS 1950's (89/60)
25L6GT used/good (10 in stock)
25L6GT National Union 1950 era like new (88/60)
25N6G US Brands NOS (3 in stock)
(BEST PRICE) 25W4GT US Brands (10 for $24.99) (half-wave rectifier)
25W4GT US Brands (20 in stock) (half-wave rectifier)
(BEST PRICE) 25W6GT US Brands NOS (4 for $14.99)
25W6GT US Brands NOS (3 in stock)
(BEST PRICE) 25Y5 NOS (4 for $14.99)
25Y5 US Brands (4 in stock)
25Z5 Cunningham used/good 1940's (55/40 and 57/40)
25Z5 Philco used/good 1940's (50/40 and 51/40)
25Z5 Sylvania used/tests like new 1940's (53/40 and 54/40)
25Z5 Tungsol used/like new 1940's (55/40 and 55/40)
25Z5 RCA NOS (2 in stock)
25Z6GT US Brands NOS (15 in stock)
(BEST PRICE) 25Z6GT US Brands NOS (4 for $14.99)
(BEST PRICE) 25Z6GT US Brands NOS (10 for $29.99)
(!!) 26 Arcturus by RCA NOS 1940's (8.5ma, Gm=1200)
26 Coronado by RCA tests like new 1940's (6.0ma)
(!!) 26 Cunningham NOS 1946 (5.4ma, Gm=1000)
(!!) (Best Single) 26 Deforest Audion balloon tests like new 1920's (8.3ma, Gm=1300)
(!!) 26 GE NOS 1946 (6.7ma, Gm=1200)
26 Knight by Sylvania ST-14 used/like new 1940's (6.4ma)
26 National Union ST-14 used/like new 1940's (6.1ma)
26 National Union engraved base tests like new 1930's (6.0ma)
(!!) 26 RCA NOS 1946 (4.3ma, Gm=900)
(!!!) (Best Value Pair) 26 RCA ST-14 engraved base used/good 1930's (3.9/4.0ma)
(!!) 26 RCA Radiotron balloon used/good 1920's (6.2mA Gm=900)
26 RCA Radiotron/Cunningham engraved used/good 1930's (3.6ma)
26 RCA Radiotron/Cunningham engraved used/very good 1930's (5.9ma)
26 ST-14 National Union used/good 1950 era (3.8ma, Gm=900)
26 ST-14 Super Silvertone used/good 1930's (3.6ma, Gm=800)
226=26 Super Silvertone Balloon used/good 1932 (4.3ma, Gm=800)
(!!) 26 Super Silvertone by National Union NOS 1940's (5.7ma, Gm=1200)
(!!!) (Good Value Pair) 26 Super Silvertone ST-14 engraved base used/good 1930's (4.3ma and 4.8ma)
(!!) 26 Tungsol NOS 1945 (4.4ma, Gm=1000)
26DQ5 International Japan NOS 1973 era (1 in stock)
26DQ5 Hitachi Hayakawa Elec. Co Japan NOS 1969 (1 in stock)
26E6WG Tungsol NOS 1950's (4 in stock)
(!!) (Recommended Pair) 272A Western Electric "meshplate" NOS and low hours/like new 1940's - 1951 (6.3ma and 6.4ma)
272A Western Electric "meshplate" used/good 1963 (5.0ma Gm=600)
272A Western Electric NOS "meshplate" (752=1947) slightly tilted plate with data sheet (6.7ma Gm=900)
(!!) (BEST PAIR) 272A Western Electric NOS "meshplate" 1961 and 1969 (6.1ma and 6.4ma)
(!!) (Good Value Pair) 272A Western Electric "meshplate" used/good 1951 and 1956 (5.8ma and 5.9ma)
27GB5=PL500 NOS (12 in stock)
281A Western Electric like new 1930's (38ma)
284D Amperex brass base low emission display tube 1940 era
(!!!) (Best Overall Pair) 286A Western Electric "top printing" mesh-plate NOS 1942-1945 (6.4ma and 6.6ma)
291A Western Electric NOS around 1940 (1 pair)
295-44514 VICTOREEN NOS (10 in stock)
(!!!!) (Recommended Single) 2A3 RCA gray plates NOS 1960 (104ma)
(!!) 2A3 Sylvania rebranded National Union black plates connected in middle like new 1940's (108ma)
(!!) 2A3 Sylvania black plates connected in middle like new 1940's (104ma)
2A4G National Union NOS (1 in stock)
2A4G National Union NOS (1 in stock)
2A4G Raytheon NOS (1 in stock)
2A4G Philco NOS 1940's
2A5 Ken Rad NOS 1940's (78/50)
2A5 Ken Rad used/tests like new 1930's (86/50)
(!) (Best Single) 2A5 RCA NOS 1940's (93/50)
2A5 Sylvania used/good 1947 (80/50)
2A5 Tungsol NOS 1940's (82/50)
2A6 Coronado engraved base NOS 1930's (29/19)
2A6 Ken Rad engraved base used/good 1930's (36/19)
2A6 RCA Cunningham used good 1930's (32/19)
2A7 Raytheon NOS 1940's (46/29)
2A7 RCA NOS 1940's (50/29)
2A7 RCA used/tests like new 1930's (49/29)
(BEST PRICE) 2AF4=2DZ4 NOS (10 for $19.99)
2AF4=2DZ4 NOS (20 in stock)
2AS15A Kalotron NOS by Thermosen, Inc.
2AS2A=2BU2 US Brands NOS (20 in stock)
(BEST PRICE) 2AS2A=2BU2 US Brands NOS (10 for $19.99)
(!) (1950's Single) 12AT7WA Sylvania black plates triple mica "D" getter used/good 1950's (6.2/7.0ma)
2AV2=2BA2 NOS (75 in stock)
(BEST PRICE) 2AV2=2BA2 NOS (10 for $14.99)
(BEST PRICE) 2B22 US Brands NOS (4 for $149.99)
2B3 NOS (3 in stock)
2B7 Tungsol NOS 1948 (42/25)
2B7 Raytheon NOS 1940's
2B7 RCA/Cunningham engraved base NOS 1930's (2 in stock)
2B7 RCA NOS 1946 (33/25)
2C26 Hytron NOS 1944 (68/38)
(BEST PRICE) 2C36 Litton USA NOS (4 for $88.88)
2C36 Litton USA NOS (6 in stock)
2C40 RCA NOS (6 in stock)
2C40A sealed NOS (5 in stock)
2C43 sealed NOS (3 in stock)
(!!) (Single) 2C51 Tungsol black plates "O" getter halo tests like new 1960's faded printing (7.6/7.0ma)
(BEST PRICE) 2C53 National Union NOS (4 for $99.99)
2C53 National Union NOS (7 in stock)
2CW4 RCA Nuvistor NOS 1963 (1 in stock)
(BEST PRICE) 2CY5 NOS (10 for $14.99)
2D21 US Brands NOS (11 in stock)
(BEST PRICE) 2E24 NOS (4 for $17.99)
2E25A CBS NOS original boxes (1 pair)
2E35 Raytheon NOS (3 in stock)
(BEST PRICE) 2FS5 US Brands NOS (10 for $14.99)
(BEST PRICE) 2GK5=2FQ5A NOS (10 for $19.99)
2K26 Western Electric NOS
(!!!!) (2nd Best Amperex PQ Single) 6922 Amperex PQ USA NOS 1962 (14.5/16.2ma) (Audio Research, Nova)
(!!!) (2nd Best GE Pair 1956) JG-6021 GE NOS "D" getter halo 1956 (6.3/5.9ma and 5.7/6.2ma) (mil-grade)
(!!!!) (Best GE Pair) 6BQ7A GE NOS "O" getter halo 1975-1976 (8.0/8.6ma and 8.3/8.3ma) (Schiit, DNA, Modwright)
(!!!!!) (2nd Best Pair 1960) 5814A GE "5 STAR" triple mica "O" getter halo 1960 (10.0/10.4ma and 10.0/9.2ma) (best audio grade 12AU7 SUB)
(!!!!) (2nd Best Pair 1968) PCC88=7DJ8 Philips Holland "O" getter NOS 1968 (12.6/14.2ma and 15/12ma) (sweet sound)
(!!) (2nd Best Pair) 6K6GT RCA NOS coated glass 1949 (38ma and 40ma)
(!!) (2nd Best Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.1/6.7ma and 6.3/6.9ma) 1-3% matched
(!!!!) (2nd Best Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (6.8ma and 6.9ma) (Same Gm)
(!!!!) (2nd Best Pair) JAN-CRP-5814WA Raytheon red tip black plates triple mica "D" getter like new 1958 (8.6/9.8ma and 9.4/8.2ma) (rare) (same Gm)
(!!!!) (2ND BEST RCA PAIR) 6EU7 RCA NOS 1970-1972 (44-50/32 and 43-49/32)
(!!) (2nd Best RCA Pair) 6Y6GA RCA clear top black plate 1971-1973 (72.5ma and 70ma)
(!!!!) (2nd Best RCA Single) 6C10 RCA branded Westinghouse NOS 1971 (Ampeg / Fender) (1.0ma/2.1ma/1.6ma) (Strongest Single)
(!!!) (2nd Best Single) 27=127 Arcturus Blue Balloon tests like new 1930 era in white box (4.5ma)
(!!!!) (2nd Best Single 1950's) ECC33=6SN7GT Mullard black plates platter getter halo NOS 1950-1955 (8.3/7.5ma)
(!!!!) (2nd Best Single) 5842=417A Amperex "PQ" Holland "D" getter Gold Pins NOS 1956-1959 (23ma)
(!!!) (2nd Best Single) 5965A GE "5 Star" NOS 1964 (19.2/14.6ma)
(!!!) (Best Value Single) 12DW7=7247 Magnovox Mullard UK used/good 1963 (0.9ma/13.6ma)
(!!!!) (2nd Best Single) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.1/36.5ma)
(!!!!) (2nd Best Single) EF86 Telefunken Germany <> bottom NOS gray shield 1972 (3.0ma) (Neumann, Lawson, Soundelux, Manley)
(!!!) (2ND BEST SINGLE) EL84 Telefunken Germany <> bottom low hours/like new 1966 (47.6ma)
(!!) (Single) JAN-CRC-5693 RCA red can NOS 1961 (2.6ma) (Peluso, Gibson)
(!!) (2nd BEST SYLVANIA PAIR) 6X4 Sylvania Philco NOS 1959 "D" getter (53-55/40 and 55-56/40)
2X2 GE NOS 1940's
2X2 National Union NOS (4 in stock)
2X2=VT-119 RCA NOS (2 in stock)
2X2 Rogers Canada NOS (1 in stock)
2X2A National USA NOS (2 in stock)
2X2A Raytheon NOS
2X2A RCA NOS (1 in stock)
3.50uf - 3.75uf / 5000VDC (estimate) oil caps used/good/pull-outs (unknown maker) (10 in stock)
(!!!) (Best Pair) 30 Brimar BVA made in USA but might be made in UK in white boxes 1940's (3.1ma and 3.3ma)
(!) 30 Cunningham NOS 1940's original box (2.7ma)
(!!!!) (Recommended Pair) JAN-CRC-30 RCA NOS 1940's same build (2.9ma and 3.0ma)
(!!!) (Best RCA Single) 30 RCA Victor NOS 1940's original box (3.3ma)
(!!) (Best Value Pair) 30 Sylvania NOS branded DELCO NOS 1947 (3.3ma and 2.8ma)
(!!) (Best Matched Pair) 30 Sylvania NOS - same plates - different shape top mica 1945-1946 (3.2ma and 3.1ma) 1-2% matched
(!!!!) (RARE SINGLE) 300A Western Electric Engraved Base circa 1933 (60ma @ 300Vplate) (payment via wire transfer or credit card) (FREE shipping)
(!!) (BEST VALUE) 300M AVVT mesh-plate (Alesa Vaic Czech Republic) like new with data sheet and original box (not a sub for 300B) (300Vplate MAX)
300uf / 150VDC Mallory NOS (2"H x 1.375" dia) (FP119) (1 in stock)
307A=VT-225 Ken Rad NOS/75% coated glass 1940's (34ma)
(!!) (SINGLE) 307A=VT-225 Sylvania NOS 1940's (44ma)
30KD6 Westinghouse JAPAN NOS (1 tube)
(!!) (1 Pair) 31 Cunningham NOS 1940's (11ma and 11.6ma)
(!) 31 Ken Rad NOS engraved base 1940 era (11ma)
31 Philco by Sylvania engraved base NOS 1930's (11.5ma Gm=1000)
(!) 31 Tungsol NOS 1940's (11.8ma)
(!!!) (Recommended Pair) 311B Amperex made in Russia NOS 1977 (37.2ma and 38.5ma) (Highest mA and Gm)
(!!) (Recommended Single) 311B Western Electric NOS 1967 glass slightly tilted, large getter, in white box (33ma)
(!!!) 311B Western Electric used/like new condition 1960 (25ma)
(!!!!!) (Best Overall Pair) 311B Western Electric NOS 1956 and 1964 (35ma and 36ma)
(!!!) (Best Single) 311B Western Electric NOS 1956 (31.6ma)
(!!!!) (Recommended Pair) 311B Western Electric NOS 1973 and 1975 (35.2ma and 36.4ma)
311CH Cetron NOS in original box 1979 (100ma) (311CH is sub for 211H)
313C Western Electric NOS (14 in stock)
313CA Western Electric NOS (6 in stock)
313CC Western Electric NOS (16 in stock)
(!!!) 314A Western Electric Engraved base NOS 1930's (full-wave rectifier) (56/40 and 63/40)
(!!!) 314A Western Electric Engraved base NOS 1930's slightly tilted glass in base (full-wave rectifier) (56/40 and 62/40)
(!!!) (Recommended PAIR) 314A Western Electric Engraved base NOS 1930's (58/40 and 64/40 x 2 tubes)
(!!!) (Recommended PAIR) 314A Western Electric Engraved base NOS 1930's (58-65/40 and 60-65/40)
(!!!) 314A Western Electric Engraved base NOS 1930's slightly tilted glass in base (full-wave rectifier) (58/40 and 66/40)
(!!!) 314A Western Electric Engraved base NOS 1930's small rattle inside base (full-wave rectifier) (56/40 and 64/40)
31JS6C US Brands NOS (4 in stock)
31LQ6 US Brands NOS (3 in stock)
31LR8 Sylvania NOS (1 in stock)
31LR8 Sylvania Dumont NOS (4 in stock)
32 Ken Rad NOS 1950 era (24/16)
32 US Brands used/good (3 in stock)
328A Western Electric "small punch" NOS 1953 (5.5ma)
(!!!) (~ RECOMMENDED PAIR ~) 329A Western Electric NOS 1956 (33ma and 34ma)
329A Western Electric NOS 1972 (1 PAIR: 35ma and 37ma)
329A Western Electric NOS 1972 (1 Pair: 33.6ma and 35.2ma)
329A Western Electric NOS 1952-1957 (1 Pair: 30ma and 30.5ma)
329A Western Electric NOS 1966 (1 Pair: 34.5ma and 38ma)
32L7GT US Brands NOS (9 in stock)
33 Sylvania NOS small part of getter material flaked off glass (58/36) strong output
33 Sylvania balloon used/strong very good condition 1930 era (52/36)
33 United USA NOS 1940's (52/36)
(!!!!) (Recomended Single) 336A Western Electric NOS 1967 (34ma)
338A Western Electric NOS 1956
338A Western Electric NOS (7 in stock)
33GT7 US Brands (4 in stock)
33JV6 GE branded RCA NOS (1 in stock) (David Berning Quadrature Z)
346C Western Electric NOS 1967 reboxed
346C Western Electric NOS 1971
346C Western Electric NOS 1971
*** BEST PRICE *** 346C Western Electric NOS 1974-1979 (10 in stock)
35 Tungsol used/tests like new 1940's (40/26)
350C Shuguang China NOS (sub for 5881 or 6L6GC) (68.5ma)
(!) (Best Pair) 352A WE NOS 1964 original boxes (1 pair)
353A Western Electric NOS (15 in stock)
35B5 US Brands NOS (8 in stock)
35A5 US Brands NOS (3 in stock) (Loktal Base)
35EH5 US Brands NOS (7 in stock)
35GL6 US Brands NOS (4 in stock)
(!) 35uf/370VAC=600VDC Mallory oil cap NOS (power supply cap) (12 in stock)
35W4 Calvertron by Brimar England NOS 1968 (55/40)
35W4 GE NOS 1961 (54/40)
35W4 GE NOS 1970 era (52/40)
35W4 GE NOS 1974 (52/40)
(!!!) 35W4 RCA NOS 1970 era (52/40)
35W4 Sylvania NOS 1960's (54/40)
35W4 TEN Toshiba Japan used/good 1960's (54/40)
(!!!) (Best Pair) 35W4 Tungsol NOS 1960 era (54/40 x 2 tubes)
(BEST PRICE) 35W4 Mixed US Brands used/good (4 tubes for $12.99)
35W4 Westinghouse used/good 1953 (54/40)
35W4 Westinghouse NOS 1960's (8 in stock)
35Z3 US Brands NOS (13 in stock) (4 for $18)
35Z4GT US Brands NOS (6 in stock)
35Z5GT Ken Rad NOS 1946 (54/40)
36AM3B US Brands and Japan NOS (18 in stock)
(BEST PRICE) 36AM3B US Brands NOS (10 for $29.99)
37 GE NOS 1946 (7.3ma)
37 GE ribbed plate NOS 1943 (8.0ma)
37 Raytheon NOS 1946 (7.3ma)
37 Sylvania branded Raytheon NOS 1948 (7.0ma)
37 RCA branded Philco used/good 1940's (6.4ma)
37 RCA Cunningham engraved base like new 1930's (8.3ma)
374A Western Electric black plate used/good 1960's (18-21ma) (10 in stock)
(!!!) (#1 374A) 374A Western Electric black plate used/test like new 1960's (21-25ma) (11 in stock)
374A Western Electric gray plate used/good 1960's (17.2ma)
(!!) (#1 374A) 374A Western Electric gray plate used/test like new 1960's (21-25ma) (6 in stock)
374A Western Electric black plate used/good 1960's (18-21ma) (3 in stock)
374A Western Electric black plate used/good/65-70% 1960's (13-17ma) (15 in stock)
375A Western Electric NOS 1954 broken center guide pin (27.6ma)
375A Western Electric NOS 1952 (34.7ma)
38 US Brands NOS (17 in stock)
(BEST PRICE) 38 US Brands NOS (10 for $29.99)
(BEST PRICE) 38 US Brands NOS (4 for $14.99)
38233=2C21 Raytheon ceramic base NOS 1940's
39/44 US Brands NOS (18 in stock) ($1.99 each minimum 3 purchased)
39/44 used/good (10 in stock)
39 Ken Rad engraved base NOS 1930's
(!) (Best Single) 393A GE made for WE NOS 1940's original box, strong output (64/40)
393A GE made for WE test like new 1940's (62/40)
393A GE made for WE tests like new 1940's, tilted top plate (62/40)
(!!) 396A=2C51 Western Electric used 1967 (9.6/7.0ma) (mis-matched Gm)
397021 Emerson by Clarostat NOS
397021 Emerson by JFD ballast used
3A Western Electric photocell NOS in original box with 3A data sheet, tested 1939 on box
3A2 US Brands NOS (15 in stock)
(BEST PRICE) 3A3A/B/C=3AW3 NOS (10 for $14.99)
(BEST PRICE) 3AL5 US Brands NOS (10 for $17.99)
3AL5 US Brands NOS (15 in stock)
(BEST PRICE) 3AT2B NOS (10 for $14.99)
3B24 Western Electric engraved base tests like new 1930's (56/40)
3B25 RCA JAN low hours like new 1946
3B28 Continental Electronics used/test like new 1940's (76/40)
3B28 Electronic Enterprises NOS 1960 (79/40)
3B28 RCA NOS 1972 (79/40)
3B28 RCA NOS 1955 (80/40)
3B29 NOS (6 in stock)
3B4=DL98 Raytheon NOS (2 in stock)
3B7=VT-182=1291 Sylvania used/very good 1940's
3B7=1291=VT-182 US Brands NOS (1 in stock)
3BN4 NOS (2 in stock)
3BN6 US Brands NOS (20 in stock)
3BU8=3GS8 US Brands NOS (10 for $14.99)
(BEST PRICE) 3BW2=3BT2=3BS2B NOS (10 for $14.99)
3C23 RCA NOS Thyratron 1974
3C23 RCA NOS Thyratron 1950's rebranded NL-3C23 National
3C23 Marshall 1965 probably by RCA in Marshall box
3C24=24G Eimac NOS 1940's
3C31=C1B Electrons Inc. NJ Thyratron NOS
3C4=DL96 Sonotone England NOS 1960's (5 in stock)
3C45=6130 Hydrogen Thyratron NOS (1 in stock)
(BEST PRICE) 3C6=XXB Philco NOS (4 for $17.99)
3C6=XXB NOS (6 in stock)
(BEST PAIR) 3DG4 RCA NOS original boxes 1971 (1 pair)
3DG4 RCA NOS original boxes (14 in stock)
3DS3 GE NOS (4 in stock)
3LF4 Sylvania branded RCA NOS 1952 (1 in stock)
3LF4 Sylvania used/good (82/60)
3Q4 US Brands NOS (8 in stock)
3Q5GT Ken Rad NOS 1940's (3 in stock)
3Q5GT Lafayette by Sylvania NOS (99/60)
3Q5GT Philco used/tests like new 1940's (96/60)
3Q5GT Tungsol NOS (101/60)
3Q5GT=VT-221 Ken Rad used/tests like new 1940's (106/60)
3Q5GT=VT-221 Tungsol used/tests like new 1940's (105/60)
(!!!!) (3rd Best Pair 1968) PCC88=7DJ8 Philips Holland "O" getter NOS 1968 (13.2/10.4ma and 10.4/11.2ma) (sweet sound)
(!!!) (3rd Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.6/2.0ma and 1.6/2.0ma) 1% matched
(!!!!) (3rd Best Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (6.5ma and 6.5ma) 1% matched
(!!) (3rd Best Quad) 6CL6 RCA FAA NOS 1963 (26, 27, 27.5, 28.5ma)
3S4 GE used/good 1960 era (99/60)
3S4 Philco and Raytheon NOS same build 1940's - 1951 (1 Pair)
3S4 RCA Fordom used/good 1950's (100/60)
3S4 RCA NOS 1950's (95/60)
3S4 RCA NOS 1950's (98/60)
3S4 Tungsol NOS 1944 (101/60)
3S4 Tungsol NOS 1948 (102/60)
(!!!) (Best Pair) VT-174=3S4 Tungsol NOS 1943 (100/60 and 100/60)
3V4 Tungsol NOS 1960 era (99/60)
4-125A=GL-4D21 GE NOS original box 1960's sold as-is
1H5GT Westinghouse Reliatron NOS
4-Pin EF Johnson (122-224-1) ceramic wafer socket NOS (UX-4) (6 in stock) (300B, 10Y, 2A3, 45, 50, 26) (Best ever made)
4 Pin EF Johnson (123-209-200) NOS for 811A / 572B / 866A (1 in stock)
(!!) 403A=6AK5 Western Electric NOS 1974 (6.6ma)
(!!) 403A=6AK5 Western Electric "D" getter like new 1966 (7.5ma)
(!!) 403A=6AK5 Western Electric NOS "D" getter 1971 (6.8ma)
(!!) 403A=6AK5 Western Electric used/good 1970 (8.2ma)
(!!!) (Single) 403A Western Electric NOS "D" getter 1957 (5.7ma)
(!!!) (Best Single) 403A Western Electric NOS "D" getter 1957 (8.7ma)
(!!) 403B=6AK5 Western Electric NOS "O" getter 1980 in 1979 box (5.8ma)
(!!!!!) (Recommended Pair) 403B Western Electric NOS "D" getter 1969 (5.5/5.3ma) 1-3% matched
(!!!!) (Recommended Pair) 403B=6AK5 Western Electric NOS "D" getter 1969 (4.8/4.5ma)
(!!) 403B=6AK5 Western Electric NOS "D" getter 1969 (6.5ma)
(!!) (Single) 403B=6AK5 Western Electric NOS "O" getter halo 1969 (5.3ma)
(!!) (1 set of 10 tubes) 404A Western Electric used/good 1963-1967 (set of 10)
(!) 404A Western Electric used/good (17ma)
(!) (Pair) 404A Western Electric used/good 1963-1966 (17.0ma and 17.2ma)
407A LM Ericsson Sweden like new 1960's (41/26 and 42/26)
407A Sylvania branded RCA NOS 1977
407A Western Electric NOS 1974 (32/26 and 34/26)
407A Western Electric like new 1968 in white box (54/26 and 64/26)
(!) (Best Single) 407A Western Electric NOS 1962 (44/26 and 49/26)
(!!!) (Recommended Pair) 407A Western Electric NOS "D" getter 1962-1970 (36-39/26 and 34-38/26)
(!!) (Best Single) 407A Western Electric NOS 1979 (47/26 and 50/26)
407A Western Electric used/good 1959 (32/26 and 34/26)
407A Western Electric used/good 1962 (35/26 and 42/26)
(!) 407B Western Electric NOS 1968 (45-47/26)
(!!!!) (1 Pair) 408A Western Electric "D" getter NOS 1956-1961 (72/60 and 72/60)
(!!) (1 Pair) 408A Western Electric NOS 1971-1974 (70/60 and 71/60)
(1 PAIR) 408A Western Electric used/good 1964 (79/60 and 78/60)
40A1 Sylvania ballast NOS (6 in stock)
40A1 Sylvania ballast used (4 in stock)
40B2 US Brands Ballast NOS (3 in stock)
40KG6A=PL519 JAPAN branded RCA tall bottle clear top NOS (1 in stock)
(!) (Recommended Pair) 41 GE Canada GT-shape glass NOS 1950 era (74-75/40)
41 Ken Rad NOS 1950 (70/40)
41 US Brands used/good (4 for $19.99)
41 US Brands used/good (40 in stock)
41=VT-48 Hytron NOS 1940's (80/40)
41=VT-48 Tungsol NOS 1940's (80/40)
(!!) 412A Western Electric NOS 1968 (52/40 and 53/40)
(!!) 412A Western Electric NOS 1969 (51/40 and 52/40)
(!!) 412A Western Electric NOS 1970 (53/40 and 53/40)
412A Western Electric NOS 1981 (54/40 and 54/40)
(!!) (Best Pair) 412A Western Electric NOS "D" getter halo 1968 (52-52/40 and 52-53/40)
413B Western Electric NOS 1967 cracks in paint
413B Western Electric NOS 1963
415A Western Electric NOS 1960 (1 in stock)
415A Western Electric NOS 1970-1981 (25 in stock) (similar to 6AS6)
(!) (SINGLE) 417A/5842 LM Ericsson Sweden NOS "O" getter halo 1960's (35ma and Gm=29,700)
(!) 417A/5842 LM Ericsson Sweden used/good "O" getter halo 1960's (19ma and Gm=23,900)
F-52984=417A Western Electric used/good 1959 (20ma and Gm=18,100)
(!) (Pair) 417A Western Electric used/good 1977 (12.2ma and 14ma)
(!!!!) (Recommended Pair) 417A Western Electric NOS "D" getter 1958 and 1961 (22ma and 22ma)
42 National Union like new 1950 era (29.5ma) (Gm like new)
42 Philco engraved base used/very good 1930's (32.5ma)
42 Raytheon NOS 1950 in white box (35ma)
42 RCA used/good 1940's (27.2ma)
42 Sylvania engraved used good 1940's (30ma)
42 Tungsol used/good 1940's (27ma)
42 Tungsol used/good 1940's (30ma)
42 Tungsol used/good 1940's faded printing (33ma)
420A WE NOS "D" getter 1962 (1.9/2.3ma)
420A WE NOS "D" getter 1970 (1.4/1.8ma)
(!!!) (Best Pair) 420A Western Electric NOS 1979 (1.6/1.9ma and 1.6/1.9ma)
423C WE NOS 1970-1981 (60 in stock)
423B Western Electric NOS 1959 (5 in stock)
427A Western Electric NOS 1950's - 1980 (22 in stock) (voltage regulator)
42EC4A=PY500 NOS (6 in stock) (BOOSTER DIODE)
42KN6 RCA Double-Plate NOS faded printing
42KN6 Sylvania branded Raytheon NOS
43 GE NOS 1950 era (3 in stock)
43 National Union NOS 1950 era (3 in stock)
43 National Union NOS 1950 era (75/58)
43 Raytheon NOS 1947 (2 in stock)
43 US Brands used/good (6 in stock)
*** (BEST PRICE) *** 43 US Brands NOS (20 in stock)
430B Western Electric NOS (10 in stock)
430C Western Electric NOS 1983 (3 in stock)
430C Western Electric NOS 1974 (8 in stock)
430C Western Electric NOS 1977 (8 in stock)
439A Western Electric NOS 1959 (5 in stock)
4409 RCA NOS 1969
443A Western Electric used/good (10 for $49.99)
443A Western Electric used/good (60 in stock)
443A Western Electric NOS (7 in stock)
(!) 448A Western Electric smooth top used/good 1965-1966 (1 pair: 19.2ma and 20.8ma) (Matched on Amplitrex)
(!!!) (Best Pair #2) 448A Western Electric "tipped top" used/tests like new D getter halo 1965-1966 reboxed (30ma and 31.8ma) (close Gm matching)
(!!!) (Best Pair #3) 448A Western Electric tipped top used/good 1965-1966 (28ma and 29.2ma) (same Gm)
(!!!) (Best Pair #1) 448A Western Electric tipped top used/like new 1965-1966 (32.6ma and 31.8ma) (close Gm matching)
(!) 448A Western Electric smooth top used/good "D" getter halo 1963-1970 (1 pair: 35ma and 36.5ma) (Matched on Amplitrex)
(!) (BEST VALUE SINGLE) 45 National Union ST-14 NOS printed base 1940's (25ma)
(!!!!!) (Recommended Pair) 45 RCA and Cunningham used/good (29ma and 33ma) 1-3% matched
(!!!!!) (Best Value Single) 45 RCA NOS 1940's (42ma)
(!!) 45 RCA Victor NOS in RCA box 1948 (39ma)
(!!!) (Best Value Single) 45 Tungsol tests like new 1940's (40ma)
80uf/450V, 2uf/350V, 15uf/25VDC Canada (KFP) NOS 2.5"H x 1.375" dia. (6 in stock)
50uf/450V, 10uf/400V, 160uf/250VDC US Made (KFP) NOS 3.5"H x 1.375" dia (235-6705K) (15 in stock)
80uf/450V, 2uf/350VDC Sprague made for RCA (KFP) NOS 3"H x 1.375" dia. (2 in stock)
46 Bulb / Lamp US Made NOS (25 in stock)
46 RCA NOS 1940's (60.4ma Gm=3210)
(Single) 46 RCA NOS original box 1940's (59ma Gm=2900)
4624 RCA NOS in factory sealed boxes 1960's (8 in stock) (sold as-is)
(!) 47 Cunningham used/good 1940's (26.6ma Gm=2020)
(!) 47 Raytheon engraved base box plate used/good 1930's (25.2ma Gm=1940)
(!) 47 RCA Radiotron Balloon used/good 1930's (23.4ma)
(!) (#1 47 Single) 47 RCA NOS 1940's reprinted - small hairline crack in base (37ma Gm=2700) (highest Ma and Gm)
(!) 47 RCA Radiotron engraved base used/good 1930's (27.5ma Gm=2250)
47 RCA used/good 1940's rebranded Silvertone (30ma Gm=2150)
(!) 47 Tungsol Aristocrat low hours/tests like new 1940's (38ma Gm=2770) (highest mA and Gm)
(BEST PRICE) 48 US Brands NOS (4 for $49.99)
48 US Brands NOS (5 in stock)
485 National mesh-plate NOS 1940's (6.7ma)
(!!!) (BEST PAIR) 485 National Radio tube engraved base mesh-plate NOS 1930's (6.0ma and 6.4ma) (variant of 27)
485 Sylvania branded Philco NOS 1940's (6.0ma)
485 Sylvania NOS 1940's (5.5ma)
48C847730 Motorola Vibrator NOS
49 RCA NOS (1 in stock)
4B32 Amperex NOS original boxes sold as-is
4BQ7A Raytheon Japan NOS (6 in stock)
4C35 Kuthe Labs made for Marconi 1951 low hours/like new
4C35 Kuthe Labs made for Marconi NOS 1951 (1 in stock)
4C35 Sylvania Hydrogen Thyratron NOS (1 in stock)
4CX250B=7203 Amperex used in Eimac box as-is
4CX250B=7203 RCA open box 1971
4CX250K=8245 Eimac like new 1963 was hermetically sealed (similar to 8172)
4CX250K=8245 Eimac NOS 1960's hermetically sealed (6 in stock) (similar to 8172)
4D22 Raytheon display tube
4E27 Gammatron used 1940's good filament
4E27 Lewis and Kaufamn NOS original boxes 1950's (3 in stock)
4E27 RCA used 1950 good filament
4G1000 Half-Wave Rectifier like new
4PR60C=8252 Eimac PULSE TETRODE NOS
(!!!!!) (BEST PAIR) 5U4G TUNGSOL NOS 1955 (57-59/40 and 55-58/40) (rare)
(!!!) (4th Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.7/1.8ma and 1.8/1.9ma)
5 pin ceramic chassis mount sockets for 807 (UX-5 base) (1 in stock)
5 pin US made ceramic chassis socket for 803 power tube (2 in stock)
(!!!) (Single) 50 RCA ST-19 glass shape used/tests like new 1940's (67.5ma)
5000 ohm Ohmite ceramic power resistor NOS (25-30 watt estimate) (40 in stock)
5000 ohm Ohmite ceramic power resistor NOS (5-10 watts estimate) (250 in stock) (Minimum order 4)
502A RCA NOS (3 in stock)
50A2 Amperite ballast NOS
50A5 US Brands NOS (2 in stock)
50B5 GE branded Westinghouse NOS 1960's (75/45)
50B5 RCA branded Raytheon NOS 1950's (64/45)
50B5 RCA NOS 1958 (64/45)
50B5 RCA NOS 1962 (82/60)
50B5 RCA used/good 1950's (63/45)
50B5 RCA used/good 1950's (64/45)
50B5 Tungsol NOS 1956 (76/45)
50B5 used/good (1 in stock)
50C5 GE black plate NOS 1963 (79/60)
50C5 GE black plate NOS 1963 (86/60)
50EH5 GE NOS 1960's (81/60)
50EH5 GE NOS (77/60)
50EH5 RCA NOS 1970 (95/60)
50EH5 RCA NOS 1960's (101/60)
50EH5 Sylvania NOS 1960's (79/60)
50EH5 Westinghouse NOS 1960's faded printing (95/60)
50L6GT Emerson by RCA used/good 1940's (91/60)
50L6GT GE branded Westinghouse NOS 1970 era (92/60)
50L6GT GE coin base NOS 1970's (2 in stock)
50L6GT GE NOS 1949-1951 (6 in stock)
50L6GT Ken Rad used/good 1947 (76/60)
50L6GT Ken Rad used/good 1948 (90/60)
50L6GT RCA Emerson like new 1940's (91/60)
50L6GT RCA Victor used/good 1950 (83/60)
50L6GT Sylvania used/good 1950's (76/60)
50L6GT Westinghouse NOS 1940's (2 in stock)
50X6 US Brands NOS (11 in stock)
(BEST PRICE) 50X6 US Brands NOS (10 for $24.99)
50Y7GT US Brands NOS (3 in stock)
50Y7GT Sylvania NOS (100/60 and 101/60)
512AX Raytheon NOS (3 in stock)
526AX Raytheon NOS (5 in stock)
53 US Brands NOS (3 in stock)
533AX Raytheon NOS (3 in stock)
53HK7 US Brands NOS (8 in stock)
5448 Burroughs Nixie readout tube used (16 pins) (1 in stock)
547DX Raytheon NOS (3 in stock)
5541=6R8 Delco Radio NOS (4 in stock)
5583 US Brands NOS (7 in stock)
55B2 Hytron Ballast used
(!!!!) 56 Arcturus Blue Balloon engraved base tests like new 1930's (5.0ma)
*** (BEST PRICE) *** 56 National Union and Sylvania rebranded Western Electronics NOS 1940's (10 in stock)
(!!!) (Recommended Pair) 56 National Union rebranded Western Electronics NOS 1940's (4.9ma and 5.1ma)
(!!!!) (Best Value Quad) 56 National Union rebranded Western Electronics NOS 1940's (5.5/5.5/5.6/5.9ma) (matched quad)
(!!!) (#1 56 National Union Pair) 56 National Union rebranded Western Electronics NOS 1940's (5.0ma and 5.2ma)
56 RCA Balloon engraved base black plate tests like new 1930's (4.7ma)
(!!) (#3 56 Sylvania Pair) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's one tube has slightly tilted glass (5.2ma and 5.5ma)
(!!) (~ Best Value Pair ~) 56 Sylvania test like new 1940's (5.3ma and 5.5ma)
5610 GE NOS around 1960
5639 Philips USA NOS 1980's
5642=DY70 US Brands NOS (40 in stock)
(Recommended) GL-5651 GE NOS 1954 (1 in stock)
5651 GE "D" getter NOS 1956
5651 GE NOS 1960's (1 in stock)
5651 Sylvania rebranded GE NOS 1960's (2 in stock)
5651 Tungsol branded GE NOS 1964 (1 in stock)
5651 Tungsol branded GE NOS 1967 (1 in stock)
5651 used/good (30 in stock)
5651A Sylvania rebranded RCA NOS 1983 (1 in stock)
5651WA Sylvania JAN 1980-1982 Diode Voltage Reference (8 in stock)
(!!) (Recommended Pair) 5651WA Sylvania JAN 1980-1982 Diode Voltage Reference (1 pair)
(!!) 5654=6AK5 RCA Command Series black plate NOS 1968 (6.8ma)
(!!) 5654=6AK5 RCA Command Series black plate NOS 1968 (8.0ma)
(!!!!) 5654=6AK5W GE 5 Star NOS "D" getter 1959 (7.6ma)
(!!!!) 5654=6AK5W GE 5 Star NOS (7.0ma)
(!!!) (Recommended single 1954) 5670 GE triple mica with D getter halo NOS 1954 (7.4/8.2ma)
(!!!) (Best Single) 5670 RCA NOS 1970 (13/10.6ma) (Highest mA and Gm)
(!!!) (SINGLE) 5670 RCA NOS "O" getter triple mica 1960 era used/good (6.6/7.2ma)
(!!!) (Slightly Microphonic Single) 5670=2C51 Tungsol black plates "D" getter NOS 1958 (9.6/10.2ma)
(!!!!) (Single) 5670W GE JAN NOS 1986 (9.8/11.6ma)
(!!!!) (BEST OVERALL PAIR) 5670W GE NOS 1986 (8.2/8.2ma and 8.4/8.2ma) 1-2% matched
5685=C6JA Cetron NOS original box (1 in stock)
5686 GE branded RCA NOS (5 in stock)
(slightly microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1957 (34.5/36.5ma)
(!!!!) (Best RCA Single) 5687 RCA black plates NOS 1963 (39.2/41ma)
(!!!) (Recommended Single) 5687 Tungsol branded Amperex black plate/bronze-black plate (38ma/43.5ma)
(!!!) (slightly microphonic) 5687 Tungsol black plates "U" getter halo branded GE NOS 1950's (36/40ma)
(!!!) (Best Pair 1950's) 5687 and JTL-5687 Tungsol black plates "U" getter NOS 1950's (33/36.5ma and 34.4/33.6ma)
(!!!) (Best Single 1950's) 5687 Tungsol black plates "U" getter used/tests like new 1950's (36/39ma)
(!!) (Good Value Single) 5687 Tungsol Hewlett Packard bronze plates "O" getter like new 1960 (32.5/33.7ma)
(!!) (Best Single) 5687 Tungsol rebranded CBS black plates "U" getter NOS 1950's (38/48ma)
(!!) (SINGLE) 5687 Tungsol rebranded IBM bronze plates "U" getter used/very good late 1950's (32.5/39ma)
5687WA GE used/tests like new 1970's (44/45ma) (highest Ma and Gm)
(!) (Best Value Single) 5687WA Sylvania JAN used/good faded printing 1970's (31/35.8ma)
5687WA Sylvania JAN used/tests like new 1960's (39/43ma) (high Ma and Gm)
(!!) (Best Value Single 1961) 5687WA Tungsol bronze plates "O" getter halo used/very good 1961 (33.4/34.8ma)
(!!!!) (Best Single) JAN-5687WB GE NOS 1972 (34.6/35.6ma)
(!!!!) (Good Value Pair) JAN-5687WB GE used/good 1970 era (29.5/31ma and 29.2/29.6ma)
(!!!!) (microphonic singles) JAN-5687WB Tungsol branded Raytheon black plates "U" getter NOS 1950's (6 in stock)
5691 RCA Red Base Black Plates used 1948 (2.2/2.4ma) (Gm=62% and 75%)
(!!!) (Recommended Single) 5691 RCA Red Base black plates used/good 1959 (2.3/2.0ma)
(!!!!) (Best Single) 5692 CBS Hytron Brown base NOS 1957 (9.4/9.0ma) (same Gm)
(!!!!) (Best Single) 5692 RCA RED BASE black plates like new 1950 (10.0/9.2ma)
(!) (SINGLE) 5692 RCA RED BASE rebranded GL-5692 GE used/good 1949 (8.2/7.6ma)
5693 GE used/like new 1959 (2.9ma)
(!) 5693 RCA NOS branded Amperex NOS (3.0ma)
5693 RCA branded Raytheon used good 1960 (2.2ma)
5693 RCA branded Tungsol used good 1950's (2.6ma)
(!!) 5693 RCA red can NOS 1949 (2.9ma)
5693 RCA used good 1958 (2.4ma)
(!!) (Good Value Pair) 5693 RCA branded Raytheon and RCA used good 1953-1960 (2.6ma and 2.7ma)
(!!!) GL-5693 GE red can NOS 1954 (3.1ma)
57 US Brands NOS (5 in stock)
57 US Brands used/good (9 in stock)
5703 Raytheon NOS 1950's (5 in stock)
5719 Sylvania Gold Brand NOS 1952 (similar to 6AD4) (4 in stock)
5722 Sylvania NOS (2 in stock)
(BEST PRICE) 5725=5725W=6AS6 US Brands NOS (10 tubes for $17.99)
(BEST PRICE) 5725=5725W=6AS6 US Brands NOS (4 tubes for $9.99)
5725=6AS6 US Brands NOS (200 in stock) ($1.49 each minimum 3 purchased)
(!!) JG-5725=6AS6W GE "D" getter NOS 1956 from bulk pack of 100 (100 in stock)
(Best Price) 5726=6AL5 Sylvania JAN NOS (10 tubes for $19.99)
5726=6AL5 Sylvania and GE JAN NOS (200 in stock)
(!!!) (Best Price) 5726=6AL5 Sylvania JAN NOS (4 for $8.99)
5726=6AL5W Raytheon NOS 1960's (5 in stock)
5727=2D21W Amperex by GE NOS 1979 (4 in stock)
5736 Westinghouse 1978 display tube open filament
5749=6BA6W RCA NOS 1960's in white box (8.6ma)
5749=6BA6W RCA NOS (8.5ma)
JAN-5749=6BA6W Sylvania NOS 1969-1970 (10ma)
5750=6BE6W GE 5 Star NOS 1960
5750=6BE6W GE 5 Star NOS 1961-1963 (1.2ma)
5750=6BE6W Sylvania JAN NOS (4 in stock)
(!!!) (Good Value Single) GL-5751 GE "5 Star" black plates triple mica D getter 1954 used/good (2.1/2.3ma)
(!!!!) (Recommended Single) 5751 GE 5-Star gray plates NOS 1965 (2.3/2.1ma)
(!!!) (Best Single) 5751 GE 5 Star NOS 1974 (2.9/2.8ma) 1-2% section balance
(!!) 5751 GE 5 Star used/good 1970 (1.6/1.7ma)
(!!!) (Best Value Pair) 5751 GE double mica gray plates NOS 1979-1981 (2.4/2.5ma and 2.3/2.6ma)
(!!!!) (Single) 5751 GE NOS gray plates NOS 1981 (2.6/2.9ma) (Same Gm)
(!!!!) (PAIR) 5751 Hitachi Japan glossy black ribbed plates triple mica double D getters 1960's (2.0/2.2ma and 1.8/2.2ma) (rare)
(!!!) (Good Value Single) 5751 RCA black plates triple mica "D" getter low hours/tests like new 1950's (2.4ma/2.5ma)
(!!!!) (Recommended Pair) 5751 RCA black plates low hours/test like new 1961-1962 (2.5/2.5ma and 2.7/2.4ma) (Best Audio Grade 5751) (same Gm)
(!!!!) (Slightly microhonic Single) 5751 RCA Hewlett Packard black plates NOS 1968 (2.4/2.6ma)
(!!) 5751 Sylvania misbranded 12AX7WA NOS 1960's (1.9/1.9ma)
(!!!) (Best Single) 5751 Sylvania NOS 1970's (2.4/2.4ma) 1% section balance
(slightly microphonic) JAN-5751 Sylvania NOS 1973 (2.0/2.3ma)
(!!) 5751W1 Sylvania triple mica "O" getter halo used/good early 1960's misbranded 12AX7WA (1.8/2.0ma)
(!!!!!) (Best Pair) JG-5751WA GE black plate triple mica U getter like new 1958 (2.3/2.3ma and 2.4/2.3ma)
575A RCA rectifier NOS 1962 (1 in stock)
5763 Sylvania JAN NOS 1970's (100 in stock) ($2.99 each minimum 2 purchased)
58 Ken Rad used/good 1930's (48/36)
58 Raytheon 4-Pillar used/tests like new (62/36)
58 RCA Cunningham used/good 1940's (62/36)
(!!!) (Best Single 1953) JG-5814 GE NOS "square getter halo" and "short wide ribbed dark black plates" 1953 in white box (11.0/12.5ma)
(!!!) (Best Single 1960) 5814A=12AU7 GE "5 STAR" triple mica NOS 1960 (10.0/10.4ma) 1-3% section balance
(!!!) (Best 5-Star) 5814A=12AU7 GE Electronic Secretary "5 STAR" triple mica NOS 1960 (10.8/10.4ma) (Same Gm)
(!!!) (Best Single 1954) 5814A=12AU7 GE "5 Star" triple mica NOS 1954 (10.2/10.8ma)
(!!) (Recommended Single) 5814A=12AU7 Hyperlec Brive France (Holland clone) NOS 1970's rebranded National (11.8/12.2ma)
(!!!!) (Best Pair) JTL-5814A Tungsol ribbed plates 1959-1960 (10.6/10.0ma and 10.0/10.4ma)
(!!!) (Good Value) JG-5814A GE triple mica "U" getter halo like new 1955 in white box (8.8/9.6ma)
(!!!) (Best Value Single) 5814A GE 5 STAR "O" getter NOS 1960's faded printing (9.6/11.8ma)
(!!!) (Recommended Single) 5814A GE "5 STAR" with "O" getter halo 1963 (10/14ma)
(!) (Slightly microphonic) JG-5814A GE NOS triple mica "U" getter halo 1956 (10.2/10.4ma) 1-2% section balance (high Ma and Gm)
(!!!!) (Best Overall Pair) 5814A Philips JAN NOS 1985 (10/9.6ma and 10/9.8ma) 1-2% matched
(!!!!!) (Best Pair) 5814A Philips JAN USA by Sylvania NOS 1985 (10/11ma and 9.5/10.5ma) 1-3% matched (same Gm)
(!!!!) (Recommended Philips Pair) 5814A Philips JAN NOS 1985 (9.5/10.5ma and 10/11.2ma) (same Gm)
5814A RCA NOS 1970 era slightly microphonic (10.2/11.2ma)
(!!) 5814A RCA black plates used/good 1964 (7.2/8.4ma)
(!!!!) (3rd Best Pair) JAN-CRP-5814WA Raytheon red tip black plates triple mica "D" getter like new 1958 (8.2/9.0ma and 9.4/8ma) (rare)
(!!) (Single) 5814WA GE NOS 1962-1963 (9/10.2ma)
5823=Z900T NOS (40 in stock)
(BEST PRICE) 5823=Z900T Mixed US Brands NOS (4 for $39.99)
5825 RCA NOS original boxes 1960's
5834=NL-649 NOS (2 in stock)
5840=EF732 GE NOS 1953 (5.3ma) (Soundelux, Peluso, Brauner)
5840=EF732 GE NOS 1965 (5.5ma) (Soundelux, Peluso, Brauner)
5840=EF732 Raytheon NOS 1960's (4.7ma)
(!!) 5842 Raytheon branded RCA NOS 1976 (20ma and Gm=20,000)
(!!!) (Best Overall Single) 5842 Raytheon branded RCA NOS windmill getter galo 1967 (43.8ma Gm=32,000)
(!!!!) (Good Value Pair) 5842Q Raytheon NOS 1983 (19ma and 20ma) 1-3% matched
5842Q Raytheon NOS 1983 (21ma and Gm=21,600)
(!!!!) (Recommended Pair) JAN-5842WA Raytheon NOS 1984-1985 (23ma and 24ma)
(!!) (#1 5847 Amperex Pair) JAN-5847A=404A Amperex USA Gold Pins NOS 1981 (37ma and 39ma)
(!!) (#1 5847 Amperex Pair) JAN-5847A=404A Amperex USA Gold Pins NOS 1981 (30.5ma and 32ma)
(!!!!) (6 in stock) 5852=6X5GT Bendix NOS 1950's * (SPECIAL PRICE) *
5876 Raytheon NOS 1960's (3 in stock)
5876A RCA NOS 1960's (2 in stock)
5876A Tungsol NOS 1968 (1 in stock)
5879 RCA branded Raytheon chrome shield NOS 1970's (1.7ma)
5879 RCA branded Sylvania NOS 1960's (1.9ma)
5879 RCA triple mica "O" getter halo 1960 (1.6ma)
5879 RCA branded GE triple mica "D" getter NOS 1957 (1.5ma)
5879 RCA branded GE NOS 1974 (2.3ma)
(!!) (Recommended Single) 5881 GE Canada NOS 1970 (73ma) (same build as Tungsol)
(!!) (Recommended Single) 5881 GE Canada NOS 1970 (81ma) (same build as Tungsol)
(!) (Recommended Single) 5881=6L6WGB GE NOS 1960's (72.5ma)
5881 International Japan black plate NOS 1960's (70ma)
(!!!) (Best Pair) 5881 Tungsol rebranded Sylvania and GE 1960 era used/test like new (77.3ma and 74.5ma) (close Gm)
(!!!) (PAIR) 5881 Tungsol tests like new 1957 and 1963 with broken center guide pins - see photo (72.5ma and 68.2ma)
(!!!!) (BEST OVERALL PAIR) 5881 Tungsol NOS 1951 and like new 1950 (72.5ma and 70ma)
(!!!) 5881 Tungsol used/good 1957 (58ma)
(!!!!) (Recommended used pair) 5881 Tungsol used/good 1960's (63.2ma and 66ma)
5886 NOS (10 in stock)
5889=ME1403 Flat Press Electrometer Pentode (10 in stock)
5894B=8737 Amperex NOS 1970's (1 in stock)
5896 GE NOS
5902 and 5902A GE NOS (8 in stock)
5915=5915A=6BE6 US Brands NOS (12 in stock)
5920=E90CC Amperex PQ Holland 1968 (6.8/6.8ma)
(!!) (Best Single) 5920=E90CC Amperex PQ Holland 1968 (8.0/8.4ma)
5933=807W Sylvania double D getter like new 1952 (60ma)
5933=807W Sylvania double D getter used/tests like new 1950 (77ma)
5933=807W Sylvania NOS 1972 (55ma)
(!!!) (BEST PAIR) 5933=807W Sylvania used/test like new double "D" getters 1950's (70ma and 70ma) 1-2% matched
(PAIR) 5933=807W Sylvania used/good - double D getters - 1950 and 1952 (64ma and 62.5ma)
(!!!) (BEST PAIR) JAN-CHS-5933=807W Sylvania NOS 1952-1956 (65.5ma and 67ma)
5933WA=807W Sylvania NOS 1961 (71ma)
5933WA=807W Sylvania NOS 1977 (65.4ma)
(!!) (Single) 5963=12AU7 GE NOS 1981 (9.4/11.4ma)
(!!) (SINGLE) 5963=12AU7 RCA NOS 1965 (10.8/13.2ma)
(!!) (Best Single) USN-CHS-5963=12AU7 Sylvania NOS "D" getter 1959 (10.6/11.8ma)
5963 RCA Hewlett Packard gray plates used/good 1960 (8.0/9.2ma)
(!!!) (Recommended Pair) 5963 gray plates NOS 1967-1973 (9.4/9.09ma and 8.4/9.0ma)
(!!!!) (Best Pair #2) 5963 RCA and RCA Beckman NOS ribbed plates 1960-1965 (9.4/9.2ma and 9.4/9.4ma) 1-2% matched (Same Gm)
(!!!!) (BEST Pair) 5963=12AU7 RCA NOS ribbed plates 1965-1973 (12.4/12.6ma and 11.4/11.6ma) (Highest mA and Gm)
5964 NOS (15 in stock)
(!!!) (Best Pair #2) 5965 Sylvania NOS 1960's (16.6/18.2ma and 18.2/16.8ma) (Berning, Conrad Johnson, Loth, Exemplar)
(!!) (Best Single) 5965 Sylvania NOS 1960's (21/19ma)
(!!!!) (2nd Best Pair) 5965A GE "5 Star" NOS 1969 (12.8/13.0ma and 12.8/13.8ma) (same Gm) 1-3% matched (CJ, Berning)
(!!!) (Best Single) 5965A GE "5 Star" NOS 1964 (13.8/15ma)
5965A GE used/good 1960's (10 in stock)
(!!!!) (BEST SINGLE) JAN-CEA-5992=6V6GT Bendix NOS 1955 (51.6ma) (rare)
(!!!!) (Best Pair) CEA-5993 Bendix NOS 1950's (52/40 x 4 sections)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (124/130mA)
(!!!) (BEST PAIR) 5998A Sylvania JAN NOS 1980 (124/126ma and 126/122ma) (5998A=7236)
5AN8 GE Canada NOS 1960's (97/60 and 85/60)
5AN8 Hit-Ray by Hitachi Japan NOS sub for 6AN8 (70/60 and 78/60)
5AN8 Raytheon by Hitachi Japan NOS (105/60 and 88/60)
5AN8 RCA NOS 1950's (88/60 and 87/60)
5AN8 RCA branded GE NOS "U" getter 1957 (84/60 and 82/60)
5AN8 RCA branded GE NOS 1967 (90/60 and 90/60)
5AN8 RCA branded Raytheon NOS "D" getter 1960 era (84/60 and 83/60)
5AN8 RCA NOS 1960's sub for 6AN8 (110/60 and 90/60) best single
5AN8 RCA NOS sub for 6AN8 (76/60 and 82/60)
5AN8 Sylvania branded CBS "D" getter halo NOS 1956 (82/60 and 85/60)
5AN8 Sylvania branded Motorola NOS 1962 (85/60 and 92/60)
5AN8 Sylvania branded Raytheon NOS 1960's (77/60 and 92/60)
5AN8 Sylvania "U" getter halo NOS 1960 era (76/60 and 90/60)
5AN8 Sylvania "D" getter halo NOS 1954 (87/60 and 92/60)
5AN8 Westinghouse branded Philco NOS 1963 (100/60 and 102/60) (best single)
5AN8 Westinghouse NOS 1963 (96/60 and 97/60) (best single)
5AQ5 US and Japan Brands NOS (sub for 6AQ5) (8 in stock)
(Best Value) 5AR4=GZ34 China NOS 1990's (50/40 and 50/40)
5AS4A GE branded Tungsol gray plates D getter NOS 1960 era (60/40 and 60/40)
(!!!!) 5AS4A Raytheon "D" getter 1960 era (58/40 and 62/40) (uprated 5U4GB)
(!!) (Best Single) 5AS4A RCA NOS 1964 slightly tilted glass (56/40 and 56/40)
(!!) (Best Single) 5AS4A RCA NOS 1958 (58/40 and 58/40)
5AS4A Westinghouse "D" getter halo 1960-1965 (58/40 and 58/50)
5AU4=5V3 Sylvania NOS 1960's (49/40 and 50/40)
5BQ7A GE black plates "U" getter 1961 (10.8/7.0ma)
5BQ7A GE Dumont gray plates "O" getter 1973 (12.8/8.2ma)
5BQ7A RCA branded Raytheon black plates "D" getter faded printing 1950's (14.0/13.6ma)
(!) 5BQ7A RCA black plates NOS 1964 (11.6/14.4ma)
4-250A=5D22 RCA 1962 used original box sold as-is (good filament)
5DJ4 GE NOS 1961 (50/40 and 50/40)
(!) (BEST VALUE PAIR) 5R4GA GE Amperex NOS 1976 - vertical scratches on bases (50-53/40 and 50-50/40)
5R4GA GE NOS 1977 (50/40 and 52/40)
(!!!!) (Best Pair) 5R4GB GE black base NOS 1981 (51-54/40 and 52-55/40 x 2 tubes)
(!!) 5R4GB GE NOS 1983 (54/40 and 56/40)
(!!) (SINGLE) 5R4GY RCA brown base used/tests like new 1949 (50/40 and 51/40)
(!!) 5R4GYA GE Hewlett Packard brown base "D" getter halo NOS 1959 (51/40 and 52/40)
5R4GYA GE NOS 1959 (48/40 and 50/40)
5R4GYA GE brown base NOS 1961 (50/40 and 52/40)
(!!) 5R4GYA GE brown base NOS 1972 (52/40 and 54/40)
(!) (BEST VALUE SINGLE) 5R4GYA GE like new 1958 a few scratches on base (51/40 and 54/40)
(!!) 5R4GYB RCA used/very good 1961 (48/40 and 51/40)
(!!) 5R4GYB RCA like new 1963 a few oxide filament flakes inside tube slightly tilted glass (50/40 and 52/40)
(!!) (SINGLE) 5R4GYB RCA NOS 1963 large getter (48/40 and 50/40)
(!!!!) (BEST PAIR) 5R4GYB RCA and RCA branded Westinghouse NOS 1961-1970 (50-52/40 and 50-53/40)
(!!) 5R4GYB RCA rebranded Raytheon NOS 1960's (50/40 and 53/40)
5R4GYB RCA used/very good 1964 (51/40 and 54/40)
5R4GYB RCA brown base like new 1970's part of glass partially melted into bottom mica (48/40 and 49/40)
5R4GYB RCA used/strong 1970 (52/40 and 54/40)
5R4GYB Sylvania NOS 1970's (52/40 and 49/40)
5T4 GE NOS 1945 (56/40 and 58/40)
5T4 GE NOS 1945 (57/40 and 65/40)
5T4 GE NOS 1945 (54/40 and 56/40)
5T4 Raytheon NOS 1950's
(!!!!) (Best Value Single) JAN-CHY-5U4G CBS used/very good "D" getter 1946 (53/40 and 53/40) 1% section balance
5U4G Crosley Sylvania used/good 1950 (55/40 and 56/40) stains at top from usage
(!!!!) 5U4G GE NOS 1952 (55/40 and 51/40)
(!) 5U4G Magnavox by Raytheon used/good 1951 (52/40 and 58/40)
(!!!!) (Best Value Single) USAF-5U4G RCA used/good "D" getter 1959 (52/40 and 57/40)
(!) 5U4G Sylvania rebranded Motorola used/good 1951 (48/40 and 52/40)
(!!!) (Good Value Single) 5U4G=VT-244 Sylvania used/good 1940's (52/40 and 56/40)
(!) 5U4G Windsor by Sylvania used/good 1947 faded getter (54/40 and 56/40)
(!!) (Recommended Single) 5U4GA GE "D" getter NOS 1955 (57/40 and 59/50)
(!!!!!) (Best Pair) 5U4GB CBS NOS 1950's double "D" getters (59-59/40 and 58-60/40)
(!!!!!) (Recommended Pair) 5U4GB HYTRON NOS 1960 "O" getter halos (60-64/40 and 60-66/40)
5U4GB Channel Master Japan 1960 double "D" getter halos low hours/tests like new (65/40 and 68/40)
5U4GB GE ITT NOS 1960's "D" getter (60/40 and 62/40)
(!!!!) (Recommended GE Pair) 5U4GB GE NOS 1968 same date codes (58-60/40 and 58-60/40)
(!!!!) (Recommended GE Pair) 5U4GB GE NOS 1966 (56-59/40 and 56-58/40)
(!!!!) (Best Overall Pair) 5U4GB GE NOS 1977 (60-61/40 and 60-61/40)
(!!!!) (2nd Best GE Pair) 5U4GB GE NOS 1977 (62-61/40 and 60-62/40 x 2 tubes)
5U4GB Tungsol used/good 1960 (51/40 and 60/40)
5U4GB Hitachi Japan NOS branded Marconi 1960's a few very small vertical scratches on base (57/40 and 58/40)
5U4GB Raytheon used/good 1960 era (54/40 and 54/40)
(!!) 5U4GB RCA NOS 1970 some white oxide flakes inside tube (55/40 and 55/40)
(!!!!) (Recommended Pair) 5U4GB RCA NOS and like new 1962 (56-58/40 and 56-58/40)
(!!!!!) (BEST OVERALL PAIR #2) 5U4GB RCA NOS 1966-1970 era (58-60/40 and 60-62/40)
(!!!!) (BEST OVERALL PAIR) 5U4GB RCA NOS 1973 (60-60/40 and 60-60/40) 1% matched
(!!) 5U4GB RCA used/good "D" getter 1960 a few scratches on base (53/40 and 57/40)
5U4GB RCA used/good 1968 (56/40 and 57/40)
5U4GB RCA used/good 1950's slightly tilted glass (55/40 and 56/40)
(!!!!) (Best Value Single) 5U4GB RCA Super Airline NOS 1960 era (58/40 and 60/40)
5U4GB Sylvania Canada NOS 1960's (61/40 and 64/40) (similar build to RCA)
(!!!) (Sylvania Pair #2) 5U4GB Sylvania NOS 1970's (60-62/40 and 60-62/40)
5U4GB Westinghouse low hours/like new "D" getter, large getter, some vertical scratches on base 1963 (54/40 and 56/40)
5U8 Westinghouse NOS 1960's
5V3 GE branded ITT NOS 1960's (52/40 and 54/40)
5V3 Raytheon branded RAD-TEL NOS 1961 (53/40 and 54/40)
(!!!) 5V4G Brimar UK gray plates used/good 1960 era (60/40 and 62/40)
5V4G Brimar UK "D" getter halo black plates used/good 1950's (58/40 and 59/40)
(!!!) (Good Value) 5V4G Brimar England black plates "D" getter halo 1950's used/tests like new (59/40 and 60/40)
(!!) 5V4G RCA NOS black plates 1955 (60/40 and 60/40)
(Best Value) 5V4G RCA Victor black plates used/very good 1948 (53/40 and 54/40)
(!!!!) (Best Pair) 5V4GA GE NOS (60-60/40 and 60-60/40)
(!!!!) (Best Pair) 5V4GA GE branded Raytheon NOS 1960's (60-60/40 and 60-60/40)
(!!!!) (Best Pair) 5V4GA GE branded Raytheon NOS 1960's (60-60/40 and 60-61/40)
(!!) (Recommended Single) 5V4GA GE NOS 1962 (60/40 and 61/40)
(!!!!) (Best RCA Pair) 5V4GA RCA gray plates NOS 1968-1972 (58-58/40 and 59-59/40)
(!!!) (Best Single) 5V4GA RCA black plates NOS 1958 slightly tilted glass (62/40 and 62/40)
(!!) 5V4GA RCA NOS gray plates 1971 slightly tilted glass (60/40 and 60/40)
(!!) 5V4GA Sylvania branded Dumont NOS 1960's (57/40 and 57/40)
(!) 5V4GA Sylvania NOS 1960's (55/40 and 56/40)
(!!) 5V4GA Sylvania NOS 1957 (56/40 and 56/40)
(!!) 5V4GA RCA branded GE gray plates used/good 1967 (57/40 and 57/40)
5V6GT CBS NOS 1955 (40.6ma)
5V6GT CBS NOS 1955 (48.5ma)
(1 Pair) 5V6GT GE black plate NOS 1956 (44.5ma and 49ma)
5V6GT GE by Sylvania NOS 1962 (38.5ma)
5V6GT GE NOS 1961 (47ma)
5V6GT Philco by GE NOS 1963 (52.6ma)
5W4=VT-97 Ken Rad metal can like new 1940's (52/40 and 52/40)
5W4 GE metal can NOS 1940's (54/40 and 54./40)
5X4G Cunningham NOS 1946 (51/40 and 52/40)
5X4G RCA NOS 1960 (54/40 and 55/40)
5Y3G Super Silvertone used/good 1940's (50/40 and 51/40)
(!!) (Recommended Single) 5Y3GT Hytron NOS 1951 (56/40 and 60/40)
(!!) (Best Value Single) 5Y3GT GE NOS 1955 (53/40 and 64/40)
(!!!!) (Best Pair for the money) 5Y3GT Philips Holland NOS 1960's (60-66/40 and 60-66/40)
(!!!!!) (BEST Overall Value) 5Y3GT Philips Holland NOS 1960's (12 in stock) (Fender, Supro, Victoria, Decware) (Best Sound for the money)
(!!) (Best Value) 5Y3GT Raytheon Japan by Hitachi NOS 1960's (56/40 and 53/40)
(!!!!) (Best Sounding Pair) 5Y3GT RCA Motorola NOS 1960 (56-61/40 and 56-62/40)
(!!!) (Recommended Single) 5Y3GT RCA NOS 1974 (60/40 and 65/40)
(!!) (Best Value) 5Y3GT Russian made NOS branded ULTRON 1970's (3 in stock)
5Y3GT Sylvania used/good 1955 (46/40 and 51/40)
(!!!) (Best Value Single) 5Y3GT Sylvania branded Westinghouse NOS 1955 (48/40 and 54/40)
(!!) (Best Value Pair) JAN-5Y3WGTA Philips by Sylvania NOS 1985 (50-52/40 and 50-54/40)
(!) (BEST 5Y3WGTA) JAN-5Y3WGTA Sylvania brown base NOS 1977 (52/40 and 57/40)
5Y4G GE NOS 1949 (48/40 and 51/40)
5Y4G National Union NOS 1950 era (51/40 and 58/40)
5Y4G Philco by Sylvania NOS 1943 (54/40 and 57/40)
5Y4G Philco by Sylvania NOS 1950 (53/40 and 56/40)
5Y4G Philco by Sylvania NOS 1950 (54/40 and 58/40)
5Y4G RCA used/good 1948 (48/40 and 53/40)
5Y4G Sylvania NOS 1940's (56/40 and 60/40)
5Y4GA RCA NOS 1971 (54/40 and 60/40)
(!!) (BEST PAIR) 5Y4GA RCA NOS 1969 same date codes (52-56/40 and 52-57/40)
5Y4GA RCA NOS 1963 (54/40 and 57/40)
5Y4GA Sylvania NOS 1960's (53/40 and 58/40)
5Y4GA Sylvania branded Zenith NOS 1960's (54/40 and 57/40)
(!) (Recommended Single) 5Z3G FAA RCA NOS 1962 (56/40 and 56/40)
(!) (Best Single) 5Z3G Hytron NOS 1947 (51/40 and 51/40)
5Z3G Ken Rad wide "D" getter NOS 1945 era (52/40 and 54/40)
5Z3G Ken Rad small "D" getter NOS 1945 era (51/40 and 51/40)
(!!) 5Z3G National Union burgundy base NOS "D" getter 1951 (56/40 and 59/40)
(!!) 5Z3G National Union NOS "D" getter 1940's (52/40 and 54/40)
(!!!) (Recommended Single) 5Z3G RCA NOS 1954 (58/40 and 60/40)
(!!!) (Recommended Pair 1957) 5Z3G RCA NOS 1957 in gold colored boxes slightly tilted glass (56-59/40 and 57-60/40)
(!!!) (Recommended Single) 5Z3G RCA NOS 1971 (56/40 and 58/40)
(!!) JAN-5Z3G RCA NOS tilted glass (56/40 and 56/40)
5Z3G TRIAD by RCA used/tests like new 1940's (52/40 and 52/40)
5Z3G Tungsol NOS 1940's (51/40 and 53/40)
5Z4 GE Coronado NOS 1950 (48/40 and 50/40)
5Z4 Ken Rad NOS 1946 (53/40 and 53/40)
5Z4 Ken Rad NOS 1949 (53/40 and 53/40)
5Z4 RCA JAN NOS 1959 (51/40 and 51/40)
5Z4 RCA NOS mid-1940's (50/40 and 51/40)
(!!!) (Best Pair) 5Z4 RCA NOS 1959 (50-50/40 and 51-51/40)
5Z4 Rogers Canada NOS 1959 (51/40 and 51/40)
6005W Sylvania JAN black plate clear glass NOS 1979 (53ma)
(!!!) (Recommended Pair) 6005W Sylvania JAN black plate clear glass NOS 1971 (45.8ma and 46.6ma)
6005W Sylvania JAN black plate clear glass NOS 1979 (47ma)
6012 RCA NOS 1961 (1 in stock)
6012 RCA NOS 1958 (1 in stock)
6012 Sylvania NOS
6012 Sylvania NOS
(!!) (Good Value Pair) 6021=CV3986 Mullard UK Mitcham plant NOS 1971 original boxes (4.8/6.3ma and 4.6/6.5ma)
(!!!) (Good Value) 6021=CV3986 Mullard UK Mitcham plant NOS 1971 (4.2/4.4ma and 4.2/4.4ma)
(!!!!) (Best Value Pair) 6021=CV3986 Mullard UK Whyteleafe plant NOS 1972 original boxes (4.4/7.0ma and 4.8/6.0ma)
(!!!) (Best GE Pair 1956) JG-6021 GE NOS "D" getter halo 1956 (6.3/6.6ma and 6.8/7.1ma) (mil-grade)
(!!!!!) (Best Value Pair) 6021 GE 5 Star Rated NOS "D" getter halo 1957 in GE 5 Star Boxes (1-3% matched) (5.0/7.2ma and 4.8/6.6ma)
6021 probably made by EI Yugoslavia NOS 1970's - 1980's (1 pair)
(!) (slightly microphonic) 6072 GE branded RCA triple mica black plates "O" getter halo 1960 used/good (2.0/2.0ma)
(!!) (Slightly Microphoinic Single) 6072A RCA black plates NOS 1971 (2.6/3.0ma)
6073=0A2 RCA NOS 1961 (argon)
(!!!!) (Best Overall Single) 6080 GE "5 Star" black plates NOS 1960 (103ma/106ma)
(!) 6080 RCA gray plates NOS 1974 (74ma/105ma)
(!) 6080 RCA gray plates NOS 1974 (92ma/86ma)
(!!) (Recommended Single) 6080WC GE NOS 1988 tilted glass (76/92ma) close Gm
6083 / AX9909 Amperex Italy NOS (1 in stock)
(!!!) (Best Single) 6087=5Y3WGTB GE 5 Star NOS 1968 (52/40 and 52/40)
6088=522AX Raytheon NOS 1955
(!!!) (Recommended Pair) JEA-6094 Bendix gold pins NOS 1961 (56ma and 59ma)
(!!!!) (Best 6094 Quad) JAN-CEA-6094 Bendix gold pins NOS 1957 (55/57/57/58ma)
(!!!) (Recommended Pair) 6094 Bendix NOS gold pins 1956 1st series made (49ma and 51.5ma)
60FX5 US Brands NOS (5 in stock)
(!) (Best Single) 6100=6C4WA GE Corvair black plate triple mica 1964 (10.4ma)
(!!!!) (Best Overall Quad) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (matched quad) 1-3% matched
(!!!) (Best Value Pair) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (66/40 and 70/40 x 2 tubes)
(!!!!) (Recommended 6106) 6106 Bendix rebranded 5Y3WGTA Heintz & Kaufman NOS (68/40 and 70/40)
(!) 6111 Sonotone by GE NOS 1962 (5 in stock)
(!!!!) (Best Overall Pair) 6112 Philips JAN 1985 (1.0/1.0ma and 0.9/1.1ma) 1-3% matched (Audio Note, Musical Fidelity)
(!!) (Best Single) 6112 Philips JAN 1980's (2.2/2.2ma)
6134=6AC7WA GE "5 Star" like new (14ma)
(!) 6136=6AU6WB RCA NOS 1960 (7.0ma)
6146A RCA used/good 1971 (80ma)
6146B GE Amperex used/good 1979 (84ma)
(!!!!) (Best Single) 6146B GE NOS 1980 (121ma)
CK-6146B Raytheon used/tests like new 1971 (116ma)
(!!!) (Pair) 6146B RCA NOS 1967-1971 (81ma and 77ma)
(!!!) (Best Pair #1) 6146B RCA NOS 1968-1970's (96.5ma and 100ma)
(!!) (Best Single) 6146B RCA branded GE NOS 1973 (102ma)
(!!!!) (Best Overall Pair) 6146B Sylvania and Sylvania Amperex NOS 1970's same build (111ma and 116.5ma) (close Gm)
(!!) 6146B Sylvania branded RTC NOS 1960's (94ma)
(!!) (Pair) 6146W GE JAN NOS 1987 (82ma and 84ma)
JHY-6186=6AG5WA CBS Hytron NOS "D" getter 1959 (8.4ma)
(!!!) JHS-6189=12AU7WA Sylvania NOS 1966 in white box (9.6/11.4ma)
(!) 6189=12AU7A GE NOS 1975 (9.6/10ma) 1-2% section balance
JG-6189=12AU7WA GE triple mica NOS 1963 (8.6/10.4ma)
(!!!!) (Recommended Pair) JAN-6189W=12AU7WA Sylvania NOS 1973-1974 (9.2/9.6ma and 9.8/8.6ma)
6189W GE JAN NOS 1973 mica flake inside tube (9.0/9.2ma) 1-2% section balance
6189W GE JAN NOS 1981 (8.4/9.0ma)
(!!) (Best Value Pair) 6189W Philips ECG NOS by Sylvania 1983-1987 (8/10ma and 8.6/10ma)
6197=6CL6 GE black plate NOS 1963 in white box (32ma)
6197=6CL6 RCA branded CBS black plate NOS 1960 era in white box (28.2ma)
6197=6CL6 RCA gray plate NOS 1971 (30ma)
6197=6CL6 Sylvania black plate NOS 1960 era (29.6ma)
(!!) (Good Value Single) 6201=12AT7 Valvo Germany rebranded Philips SQ 1970 (6.8/7.8mA)
(!!) (Recommended Single) 6201=12AT7WA GE "5 STAR" NOS 1970 (8.0/9.2ma)
6201=12AT7WA RCA Black Plates "o" getter halo used/like new 1961 (8.6/7.8ma)
(!!!!) (Recommended Single 1954) GL-6201=12AT7WA GE "5 STAR" black plates triple mcia D getter 1954 tests like new (8.2/8.4ma)
(!) 6201=12AT7WB GE gray plates NOS 1969 (6.2ma/6.6ma)
(!!!!) (BEST PAIR #1) JG-12AT7WA=6201 GE NOS "blue tip - red dot" triple mica, "O" getter halo, gray plates 1960 (9.6/10.4ma and 9.2/10ma) (close Gm)
(!!) (6202 Best Value) 6202 GE rebranded 6X4WA GE JAN NOS 1981 (61/40 and 64/40)
6202 GE 5 Star used/like new 1958 (52/40 and 52/40)
6202 GE branded National NOS 1960's (51/40 and 51/40)
6202 GE rebranded 6X4WA GE NOS 1966 (54/40 and 54/40)
6202 GE used/good 1960's (51/40 and 51/40)
6202 RCA NOS 1972 (52/40 and 54/40)
6202 RCA used/good 1974 (52/40 and 52/40)
6203 GE 5-Star NOS 1965 (54/40 and 54/40)
6203 US Brands NOS (11 in stock)
(slightly microphonic) 6211 GE used/good 1956 (4.8/4.9ma) 1-2% section balance
(!) (Single) 6267=EF86 Amperex East Germany by RFT NOS 1982 (2.3ma)
(!!!) (BEST VALUE PAIR) 6267=EF86 Siemens Germany by RFT NOS 1971 (2.7ma and 2.8ma)
(!!!) 6336 Chatham metal plates used 1954 (59/74ma)
(!!!) 6336 Chatham metal plates used 1957 (57/53ma)
(!!) 6336 Chatham by Tungsol metal plates used 1950's 1st series made (54ma/85ma)
6336A GE used/good 1960 era (74/79ma)
6336A RCA branded GE used/good 1960 (61/79ma)
6336A RCA branded GE like new 1966 (88ma/110ma) ***
6336A RCA used/good 1968 (81/120ma) ***
(!!!!) 6336A Tungsol branded Heintz and Kaufman 1960's (62/76ma) ***
(!!!) (Recommended Single) 6336A Tungsol NOS 1960 era (75/80ma) ***
6336A Tungsol used 1963 (52/56ma) ***
6336A Westinghouse used/good 1968 (62.5ma/76ma)
6336B Cetron USA used/good 1981 (74ma/92ma) ***
6350 GE 5-Star like new "O" getter 1962-1963 era (9.6/9.8ma)
6350 GE 5-Star NOS 1963 (13.2/12ma)
(!!!!) (Recommended Single) 6350 GE NOS 1960's (11.2/13.2ma)
(!!!) (Best Single) 6350 RCA black plates NOS "O" getter NOS 1960's (16.0/16.2ma) (Highest Ma and Gm)
(!!) (Recommended Single) 6350 RCA NOS rebranded United triple mica "U" getter halo 1950's (9/9.6ma)
(!!) 6350 RCA NOS triple mica "U" getter NOS 1960 era (12.8/13.2ma)
6350 Sylvania black plates "U" getter halo used/good 1956, faded printing (8.2/8.8ma)
6350 Sylvania black plates NOS, "U" getter halo 1956, faded printing (11.5/14.5ma)
(!!) (Recommended Single) 6350 Sylvania black plate NOS "U" getter halo 1957 (9/10ma)
6350 Sylvania made for IBM black plates "U" getter halo tests like new 1959, faded printing (11.8/12.2ma)
(!!!!!) (Recommended Pair) 6350 Sylvania black plates NOS 1950's "D=SQUARE" getter rebranded United (8.8/9.2ma and 9/10.2ma)
(!!) 6350 Sylvania black plates rebranded United "U" getter used/good 1950's (8.7/9.3ma)
(!!!) (Recommended Single) GB-6350 Sylvania Gold Brand black plates NOS 1962 square "D" getter (10.2/10.8ma)
6350 Sylvania made for IBM black plates "U" getter halo used/good 1950's, faded printing (9.2/9.7ma)
(!!!!!) (Good Value Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1950's (9.6/9.8ma and 9.2/9.8ma) (Emille Labs Cha'am)
(!!!!!) (Recommended Pair) 6350 Sylvania rebranded United black ribbed plates NOS large "U" getter halo 1955-1957 (10.5/10.9ma and 10.0/10.7ma) 1-3% matched
6360 Amperex JAN USA NOS 1981 (4 in stock)
6360 Amperex JAN USA NOS 1991 (20 in stock) (4 for $35)
6360 Amperex JAN USA NOS 1968-1977 (5 in stock) (4 for $35)
(!!!) (Best Tungsol Single) JAN-CTL-6384 Tungsol NOS 1966 (82ma)
(!!!) (Best Pair) JAN-6384 Tungsol used/test like new 1967-1972 (68.5ma and 66ma)
(!!) (Good Value Pair) 6384 Tungsol used/good 1967-1969 same build, 1 tube has slightly tilted glass (59.5ma and 60ma)
6384 Tungsol used/good 1960's (63.5ma)
GL-6463 GE NOS "U" getter halo 1955 (11/12.8ma)
(!!!) (BEST PAIR) 6463 GE NOS 1966 (16.8/21ma and 17.6/21.5ma) (Highest mA and Gm)
6485=6AH6 Raytheon NOS 1950's pin #3 shorter than other pins
6528A Cetron tests like new 1979 broken guide pin (111/124mA)
(!!!) (Best Overall Single) 6528A Cetron like new 1987 (138/142mA)
6528A Cetron like new 1989 (102/110mA)
6528A Cetron low hours/like new 1980 (97/134mA)
6528A Cetron NOS 1989 (100/135mA)
6528A Cetron used/good 1979 broken guide pin (99/117mA)
6528A Cetron used/good 1987 (104/106.5mA)
6528A Cetron used/good 1987 (112/113mA)
6528A Cetron low hours/like new 1989 (100/122mA)
6528A Cetron used/good 1989 slightly tilted glass (94/127mA)
(!!) (2nd Best Pair) 6528A Cetron used/very good 1987-1989 (110/114ma and 117/122ma)
6528A Raytheon NOS graphite plates 1970 era (119/129mA)
6528A Raytheon graphite plates like new 1970 era (125ma/135ma)
(!!!!!) (BEST SYLVANIA PAIR) 6550 Sylvania welded plates branded RCA 1978 low hours/like new (124ma and 130ma)
(!!!!) (Best Value Single) 6550 Tungsol branded Sylvania smooth gray plate used/tests like new 1960 era (138ma)
(!!) (Best Single) 6550 Tungsol gray plate with vent holes NOS 1966 (163ma)
(!!!!!) (BEST QUAD #3) JAN-6550A GE NOS 1985-1986 (132.5ma, 132.2ma, 133.2ma, 134.4ma) 1-2% matched (close Gm)
(!!) (Recommended Single) 6550A GE rebranded RCA stapled plates NOS 1979 slightly tilted glass (136.5ma)
(!!) (BEST VALUE) 6550A GE stapled plates NOS around 1980 (119ma) (nice single)
6550A GE stapled plates used/good 1980's (115ma)
(!!!!) (Best Single) 6550C Svetlana Russian NOS 1996 (149.4ma)
(!!!!) (Recommended Single) 6550C Svetlana Russian low hours/like new 1999 (149ma)
(!!!!) (Best Value Pair) 6550C Svetlana Russian used/test like new 1998 (140ma and 142ma)
6570 RCA NOS (4 in stock) (phototube)
(!) 6626=0A2WA RCA NOS (1 in stock)
6626=0B2WA CBS NOS "D" getter 1950's (argon)
6661=6BH6 GE NOS (7.5ma)
6661=6BH6 GE NOS (4 in stock)
(!!!) (Best Pair) 6663=6AL5 Tungsol NOS 1950's (48-48/40 and 48-49/40)
6676=6CB6A GE NOS mobile rated (13 in stock)
6677=6CL6 GE NOS (5 in stock)
6678=6U8A GE NOS (3 in stock)
(!!!) (Best Mullard Pair) 6688=6688A=E180F Mullard Philips SQ and Mullard RCA gold pins NOS 1971-1974 (11.5ma and 11.5ma)
6688=E180F National UK black plate NOS probably made by Amperex (9ma)
6688=E180F National UK gray plate NOS probably made by Amperex (16ma)
(!!) (Single) 6688=E180F Telefunken Germany <> bottom NOS gold pins 1968 (9ma)
(!!!!) (Best Pair #2) 6688=E180F RCA by Mullard UK gold pins 1974 (8.8ma and 9.0ma) (strong Gm)
6844A Burroughs nixie tube used (2 in stock)
6883B Dumont by GE NOS 1975 (2 in stock)
(!!!!) (Best Amperex PQ Single) 6922 Amperex PQ USA NOS 1962 (19.0/18.2ma) (Audio Research, Nova)
(!!!) (Best Single) 6922 Amperex PQ USA 1967 NOS (13.6ma/16.8ma)
(!!) (Good Value Single) 6922 Amperex PQ Holland gold pins used/good 1961 (10/19ma) (mic)
(!!!!) (Single) 6922=E88CC Penta Labs Hungary used/good 1980 era (10/15ma)
(!!!!) (Best Overall Pair) 6922=E88CC Telefunken Germany <> bottom NOS 1960 same date codes (14/17.6ma and 15.4/16.4ma)
(!!!) 6922=E88CC Tesla Czech Republic NOS 1967 (12/15.7ma) (mis-matched Gm)
(!!) (Best Value Single) 6922=E88CC Tesla Czech Republic NOS 1970 (10.6/15ma) (RODE)
(!!!) (BEST VALUE SINGLE) 6922=E88CC Tungsram Hungary NOS 1979 (12.2/12.8ma)
(!!!!) (Best Value Single) E88CC=6922 Mullard SQ Holland used/good 1966 (11.0/11.4ma) (3D MIDS, low noise, sweet sound) (same Gm)
(!!!) (BEST SINGLE) JAN-6922 Sylvania NOS 1971 (15/18.4ma)
(!!!!) (Best Single) USN-CHS-6922 Sylvania gold pins NOS 1965 (12/16.6ma)
(!!) (Best Value Single) JAN-6922 Sylvania NOS 1971 tilted glass (19.0/17.2ma)
6973 RCA black plate used/good 1950's (34ma)
6973 RCA gray plate used/good 1970 era (56.5ma)
(!!!!) 6973 RCA gray plate like new 1965 (38ma)
6973 RCA black plate like new 1959 (44ma)
6973 Sylvania gray plate NOS 1970's (61ma)
6A3 Ken Rad coated glass NOS 1950 (82ma)
6A3 RCA Victor NOS 1948-1949 (62ma)
6A3 Sylvania branded Tungsol used/good 1940's (70ma)
6A3 Tungsol coated glass used/good 1940's (60ma)
6A3 Tungsol coated glass used/good 1940's (44ma)
6A4/LA US Brands NOS (5 in stock)
6A5G Sylvania 1940's low hours/like new (72ma)
(!!!) (BEST PAIR) 6A5G Sylvania NOS 1940's - 1 branded Philco - same build (100ma and 102ma)
6A5G Sylvania rebranded Ken Rad NOS 1940's (114ma)
6A5G Sylvania rebranded Philco engraved base NOS 1930's (79ma)
6A5G Sylvania rebranded Philco NOS 1940's (123ma)
6A6 Raytheon like new 1930's (92-94/40) strong output
6A6 US Brands NOS 1940's (8 in stock)
6A7G Marconi Radiotron Canada NOS 1950's (6 in stock)
(!!) (Best Pair) 6A7G Marconi Radiotron Canada NOS 1950 era
6A7G National Union NOS 1950 era (46/29)
6A7G RCA Cunningham like new 1930's (45/29)
6A7G RCA Cunningham used/good 1930's (41/29)
6A7G RCA NOS 1970 (47/29)
6A7G RCA NOS sealed box 1940's (46/29)
6A7G National Union used/good 1940's (40/29)
6A7G Sylvania Motorola NOS 1952 (42/29)
6A7G US Brands used/good (9 in stock)
6A8 GE metal can NOS 1959 (95/60)
6A8 GM Genuine Parts metal can used/tests like new 1940's (52/29)
6A8G Sylvania NOS 1951-1952 (44/29)
6A8G Tungsol NOS 1950 era (3 in stock)
6A8GT CBS NOS 1952 (42/29)
6A8GT Raytheon NOS 1950 era small hairline crack in base (53/29)
6A8MG France NOS in large metal cans (25 in stock)
6AB4 GE branded CBS NOS 1960 era (13ma)
6AB4 GE NOS "D" getter 1962 (8ma)
6AB4 RCA black plate "D" getter NOS 1950's (11.4ma)
6AB4 RCA branded CBS "D" getter halo black plate 1960 (12.9mA)
6AB4 RCA black plate NOS 1966 (11.5ma)
6AB4 Tungsol NOS "D" getter 1950's (9.6ma)
6AB4 Tungsol NOS "D" getter 1950's (13.2ma)
6AB5=6N5 RCA NOS tuning eye 1940's (2 in stock)
6AB5=6N5 RCA NOS 1960 tuning eye (2 in stock)
6AB7 CBS NOS (3 in stock)
6AB7=1853 RCA NOS (10 in stock)
6AB7 Sylvania NOS (2 in stock)
6AB7Y=1853 RCA NOS (6 in stock)
6AB8=ECL80 Amperex by Siemens Germany low hours/tests like new 1970 (67/35 and 32/20)
(PAIR) 6AB8=ECL80 Amperex by Siemens Germany low hours/test like new (64-64/35 and 31-33/20)
(BEST SINGLE) 6AB8=ECL80 Amperex Japan NOS 1967 (67/35 and 40/20)
(BEST SINGLE) 6AB8=ECL80 Amperex Mullard NOS 1970 (70/35 and 38/20)
6AB8=ECL80 Raytheon Japan NOS (4 in stock)
6AB8=ECL80 Mullard UK used/good 1963 (60/35 and 30/20)
6AC10 GE branded RCA NOS (1 in stock)
6AC10 GE branded RCA NOS (1 in stock)
6AC10 GE used/good in white box (1 in stock)
6AC10 GE NOS rebranded various names (5 in stock)
6AC10 Raytheon JAPAN NOS original boxes (2 in stock)
6AC10 Raytheon JAPAN NOS in white box (1 in stock)
6AC10 Sylvania NOS (3 in stock)
6AC5GT Sylvania NOS 1940's (39/21)
(!!!) (Recommended Pair) 6AC7=1852=VT-112 RCA used/very good 1944 (9.5/9.5ma)
(!!) (Best GE Pair) 6AC7 NOS 1960's - 1970's (13ma/13.5ma)
6AC7 Ken Rad NOS 1940's (14ma)
(!!!!) (Best Pair) 6AC7 RCA NOS 1960's (11ma and 11.8ma)
(!!!!) (Recommended PAIR) 6AC7 RCA NOS 1961 (11.4/12.4ma)
(!!!!) (Best Pair) 6AC7 RCA NOS 1961-1962 (10.3ma and 10.6ma)
(!!) (Recommended Pair) USN-CRC-6AC7=VT-112 RCA 1942-1943 used/very good (9.5/9.6ma) 1-3% matched
(!!!) (BEST PAIR 1940's) 6AC7=1852=VT-112 RCA 1942-1944 test like new (13/13.5ma)
(!!!) (Recommended Pair 1940's) USN-CRC-6AC7 RCA 1942-1945 used/test like new (11.5/11.6ma)
(!) (GOOD VALUE PAIR) JAN-CRC-6AC7=VT-112 US Brands 1942-1946 used/good (6.2/6.4ma)
(!!) (Pair) 6AC7 RCA NOS 1957-1965 (9.2/9.2ma) 1-2% matched
6AC7 Tungsol NOS 1950's (8.2ma)
6AC7 Tungsol NOS 1950's (14.4ma) (high ma)
(!!) (BEST PRICE) 6AC7 Mixed US Brands (4 tubes for $14.99)
6AC7 US Brands used/good (40 in stock)
(!!) (BEST PRICE) 6AC7W RCA used/good (4 tubes for $8.99)
6AD7G US Brands NOS (4 in stock)
6AE5G GE NOS 1950 (8.5ma)
6AE5GT Tungsol branded Ken Rad NOS 1940's (9.0ma)
6AE5GT Tungsol branded Delco NOS 1940's (10.2ma)
(!!) (2nd Best Pair) 6AE5GT Tungsol branded Delco and Radiotron NOS 1940's (7.4ma and 7.6ma)
6AE5GT Tungsol branded RCA NOS 1940's (6.3ma)
6AE6G Sylvania NOS 1940's
6AE6G Tungsol used/good 1940's
6AF11 US Brands NOS (15 in stock)
6AF3 GE NOS (3 in stock)
6AF3 Sylvania NOS (4 in stock)
6AF4A Raytheon Japan gray plate NOS (21ma)
(!!!) (Best Pair) 6AF4A Sylvania NOS 1965 (22.5ma and 22.8ma)
6AF6G RCA tuning eye NOS 1950 bright eye
6AF6G RCA tuning eye NOS 1957
6AF6G Sylvania tuning eye NOS 1950 bright eye
6AF9 US Brands NOS (20 in stock)
6AG5 GE "D" getter NOS 1955 (7.6ma)
6AG5 Tungsol branded Raytheon NOS 1960's (7.4ma)
6AG7 GE NOS (7 in stock)
6AG7 RCA NOS 1960's (30ma)
6AG7 RCA NOS brown bottom 1960's (37.4ma)
6AG7 Tungsol NOS 1957 (34ma)
6AG7 used/good (16 in stock)
6AG7Y GE NOS 1971 (34.2ma)
6AH4GT GE used/good 1955 (20ma)
6AH4GT Hytron By GE "D" getter low/hours/like new 1950's (21ma)
6AH4GT RCA NOS 1960's (17.5ma)
6AH4GT Sylvania chrome top NOS 1950's (22ma)
6AH4GT Sylvania branded Raytheon chrome top 1956 (21ma)
(!) (Best Single) 6AH4GT Tungsol ITT NOS 1960's (34ma)
6AH6 Sylvania NOS 1960 era (11ma)
6AH6WA GE NOS 1985-1986 (12ma)
6AH6WA GE NOS 1985-1986 (14ma)
6AH6WA GE NOS (20 in stock)
6AH6WA Raytheon NOS 1960's (11.6ma)
(!) (Best Single) JAN-6AH6WA Sylvania NOS 1969 (13ma) (Highest mA and Gm)
6AH6WA Sylvania JAN NOS 1960's - 1970's (6 in stock)
6AJ5 NOS (2 in stock)
6AK10 GE NOS (5 in stock)
(!!) (Best 403B Single) 403B=5591=6AK5 Western Electric NOS "O" getter halo 1958 (8.2ma) (special quality)
(!!!!) 6AK5 GE NOS 1973 (10.2ma)
(!!!!) (Best Pair #2) JHY-6AK5 Hytron black plate NOS 1952 (8.2ma and 8.5ma) (close Gm) 1-3% matched
(!) JHS-6AK5 Sylvania NOS 1954 (5.5ma)
(!!) 6AK5 Western Electric NOS "D" getter 1956 (7.0ma)
6AK6 US Brands NOS (40 in stock)
6AK6 RCA NOS 1959 (86/60)
6AK6 RCA NOS 1971 (90/60)
6AL11 US Brands NOS (10 in stock)
6AL3=EY88 RCA Holland NOS 1960 (Half-Wave HV Rectifier) (1 in stock)
(!!) (Best Pair) 6AL3=EY88 Rogers and RCA Holland 1968-1970 era Half-Wave HV Rectifier NOS (94/60 and 95/60)
6AL3=EY88 Realistic Germany by Siemens NOS (1 in stock)
6AL3=EY88 Sylvania NOS Half-Wave HV Rectifier (1 in stock)
(!) (BEST PAIR) 6AL5 GE NOS 1960's (48-48/40 and 48-50/40)
(!!!) (BEST PAIR) 6AL5 GE branded RCA NOS 1970's (48-48/40 and 47-48/40)
(!!!) (BEST PAIR) 6AL5 RCA NOS 1970 era (48-50/40 and 50-50/40)
(!!!) (PAIR) 6AL5 RCA NOS 1970 era (47-48/40 and 46-48/40)
6AL5 Sylvania branded RCA NOS 1970's (46/40 and 47/40)
6AL5 Sylvania Canada NOS (48/40 and 49/40)
6AL5 Sylvania NOS (1 in stock)
6AL5 Tungsol rebranded GE NOS 1966 (48/40 and 50/40)
6AM8A US Brands NOS (40 in stock)
(BEST PRICE) 6AN5A and 6AN5WA NOS (10 for $19.99)
6AN6 US Brands NOS (10 in stock)
(!) 6AN8 RCA black plates "D" getter halo 1958 rebranded Admiral (14.2/10.5ma)
6AN8A RCA gray plates used/tests like new 1960's (16.6/12.4ma)
(!!!) (Recommended Single) JHS-6AN8A Sylvania NOS 1966 (13.6/16.5ma)
(!!) (BEST PRICE) 6AQ5 and 6AQ5A Mixed Brands used/good (4 for $14.99)
6AQ5A=6669 European NOS branded Siemens NOS 1975 (48.5ma)
6AQ5A Amperex Japan NOS 1970 (48.8ma)
(!!) 6AQ5A GE Johnson Electron tube NOS 1962 (42ma)
(!!!!) (Best Pair #2) 6AQ5A GE NOS 1974-1981 (50ma and 52ma)
6AQ5A GE used/very good 1960's (40ma)
6AQ5A Hewlett Packard by Sylvania black plate like new 1960's (42.6ma)
(!!) (Good Value Pair) 6AQ5A International Japan tests like new 1970's faded printing (40.8ma and 42.8ma)
6AQ5A International USA NOS (56ma)
6AQ5A Raytheon Japan NOS 1970's (49.4ma)
6AQ5A Raytheon Japan NOS 1970's (2 in stock)
(!!) 6AQ5A RCA branded Realistic Lifetime NOS 1960's (53ma)
(!!) (Recommended Pair) 6AQ5A Sylvania branded RCA black plate NOS 1970's (50ma and 46.5ma)
6AQ5A Sylvania used/good 1960's (41.5ma)
6AQ7GT US Brands NOS (12 in stock)
(!!!) (Best Pair) 6AC7 RCA 1942-1945 used/test like new (13/14ma)
6AR5 RCA JAPAN branded Gt. Britain NOS (2 in stock)
6AR6 Raytheon black plate used/good 1952 (67ma)
6AS5 US Brands NOS (60 in stock)
6AS6=409A Western Electric NOS 1955 (4.8ma)
6AS6 GE NOS (4 in stock)
6AS6 RCA gray plate NOS 1960's (4 in stock)
(!) (Recommended PAIR) 6AS6 RCA gray plate NOS 1963 (4.7ma and 4.7ma)
6AS6=409A Western Electric used/tests like new 1951 (5.4ma)
(!!) 6AS7G Russian branded National NOS 1990's (50ma/86ma)
(!!) 6AS7G Russian branded National NOS 1990's (51ma/77ma)
(!!) 6AS7G Russian branded National NOS 1990's (62ma/65ma)
6AS7GA GE black plates NOS 1963 (107ma and 84ma)
6AS7GA GE NOS 1970 era (77ma and 82ma)
6AS7GA GE NOS 1979 (105ma and 126ma)
(!) (Best Single) 6AS7GA RCA black plates NOS 1972 (114ma and 127ma)
6AS7GA Westinghouse like new 1967 (67ma and 71ma)
6AS7GA Sylvania metal base NOS 1960's (77/87ma)
6AT8A US Brands NOS (15 in stock)
(!!) (BEST RCA PAIR) 6AU4GTA RCA NOS 1961
(!!) 6AU4GTA RCA used/good 1960's (89/60)
(PAIR) 6AU4GTA Sylvania NOS 1960's (87-88/60)
(!!) 6AU4GTA Sylvania NOS 1970's
(!!!) (BEST PAIR) 6AU5GT GE gray plates NOS 1960's (75ma and 74ma)
(!!!) (BEST PAIR #2) 6AU5GT GE gray plates NOS 1960's (66.5ma and 65ma)
6AU5GT RCA black plates NOS 1950's (1 pair: 54ma and 53ma)
(!) (#1 6AU5GT RCA PAIR) 6AU5GT RCA black plates NOS rebranded same build (64ma and 64.5ma)
6AU6 and 6AU6A Mixed Brands (USA / Canada / Japan) used/test good (10 tubes for $39.99)
6AU6WA Sylvania NOS 1958 (7.7ma)
6AU8 RCA black plates "D" getter halo NOS 1950's (5 in stock)
(!!!!) (Best Price) 6AU8 Sylvania NOS (4 for $9.99)
6AU8A RCA NOS (17 in stock)
(!!) (Recommended Pair) 6AV5GA GE NOS 1968 (45ma and 50ma)
(!!) (Recommended Pair) 6AV5GA GE NOS 1960's same build (1) CBS (1) Admiral (50ma and 55ma)
6AV5GA GE NOS 1957 (67ma)
(!!) (Best Pair) 6AV5GA Sylvania NOS 1960's same build (1) branded Silvertone (58.5ma and 60ma)
6AV5GA Sylvania NOS 1960's (78.4ma)
6AV6 Delco by Raytheon like new 1959 (1.4ma)
6AV6=EBC91 Ediswan Valve UK NOS 1960's (2.5ma)
6AV6=EBC91 Ediswan Valve UK NOS 1960's (1.2ma)
6AV6 GE JAN NOS 1965 (1.0ma)
6AV6 GM Delco by Sylvania NOS 1960's (1.2ma)
6AV6 Lafayette Taiwan NOS 1970's (1.3ma)
6AV6 Lindal Japan NOS 1970's (1.3ma)
6AV6 National Japan NOS 1970's (1.2ma)
6AV6 Raytheon Japan NOS (1.0ma)
(!!) (PAIR) 6AV6 Sylvania and Sylvania branded Executone NOS 1960's (1.0ma and 1.0ma)
6AV6 Sylvania Executone NOS 1960's (1.4ma)
6AV6 Teonex Canada NOS 1960's (1.0ma) (2 in stock)
6AV6 US Brands and Japan used/good (4 in stock)
6AW8A GE NOS 1976 (4.9/21ma)
6AX4GT CBS NOS 1950's (54/40)
6AX4GT CBS short bottle NOS 1950's (54/40)
6AX4GT Channel Master JAPAN NOS 1960's (56/40)
6AX4GT RCA used/tests like new 1955 era (56/40)
6AX4GTB Rogers Canada NOS 1960's (52/40)
6AX4GT RCA NOS 1960's (56/40)
(!!) (BEST PAIR #1) 6AX4GTB GE NOS 1967 same build (56/40 and 56/40)
6AX4GTB GE used/strong 1960 (60/40)
6AX4GTB RCA used/tests like new 1964 (57/40)
6AX4GTB Sylvania coin-base NOS 1970's (54/40)
6AX4GTB Tungsol used/good 1950's (48/40)
6AX5GT RCA branded Raytheon NOS 1960 era (50/40 and 52/40)
6AX5GT RCA used/good 1962 (51/40 and 52/40)
(!!) (Pair) 6AX4GTB Sylvania NOS and like new 1960's (56/40 and 53/40)
6AZ5 Sylvania NOS (5 in stock)
6AZ8 RCA NOS (1 in stock)
6AZ8 RCA branded GE NOS (1 in stock)
6B4G Ken Rad branded RCA coated glass NOS 1946 (110ma)
6B4G Philco by Sylvania NOS 1947 (80ma)
6B4G Raytheon NOS 1950 era (94ma)
(!!!) (Best Value Pair) 6B4G Sylvania NOS 1952 same build (76ma and 80ma)
(!!!) (Best Sylvania Pair) 6B4G Sylvania NOS 1940's same build (92ma and 95ma)
6B4G Zenith by Sylvania NOS plates connected 1940's (123ma)
2B7 Arcturus NOS 1940's (2 in stock)
6B7 CBS Hytron NOS
6B7 Raytheon NOS 1950 era (2 in stock)
6B7 RCA Emerson NOS 1940's
6B7 Sylvania engraved base tests like new 1930's
6B7 US Brands used/good (3 in stock)
6B8 Tungsol NOS (56/29)
6B8G Ken Rad NOS (2 in stock)
6B8G Philco NOS 1940's (8 in stock)
6B8G Raytheon NOS (1 in stock)
6BA6 US Brands / Canada / Japan used/good (15 in stock)
6BA7 RCA Black Plate NOS 1952 (63/40)
6BA7 GE NOS 1964 (69/40)
6BA7 Sylvania NOS 1950's (72/40)
6BA8A GE NOS (1 in stock)
6BA8A RCA NOS (12 in stock)
6BC4 NOS (20 in stock)
6BC7 Sylvania branded RCA NOS 1950's (3 in stock)
6BC7 Sylvania rebranded RCA NOS 1960's (4 in stock)
6BC7 Sylvania rebranded GE NOS (4 in stock)
6BC8 Tungsol used/good "U" getter 1950's (5.4/6.8ma)
6BC8 Raytheon used/good 1962 no printing (5.6/7.8ma)
6BC8 Westinghouse Canada NOS 1960's (6.0/6.6ma)
6BD5GT US Brands NOS (5 in stock)
EK90=6BE6 Mullard branded Valvo West Germany NOS in VALVO boxes 1960's (.9ma Gm=800)
6BE6 GE NOS (4 in stock)
(!) 6BE6 Raytheon NOS 1950's (1.1ma Gm=900)
(!) (BEST SINGLE) 6BE6 RCA NOS 1960 (1.2ma Gm=800)
6BE6 Sylvania NOS 1960's (1.8ma Gm=900)
6BE6 Sylvania NOS (5 in stock)
(BEST PRICE) 6BE6 US Brands NOS (4 for $17.99)
(BEST PRICE) 6BE6 US Brands used/good (4 for $9.99)
6BG6G Ken Rad tests like new 1951 (85ma)
6BG6G RCA NOS 1963 (63ma)
6BG6G RCA NOS 1951 (75ma)
6BG6G RCA NOS 1953 (71ma)
6BG6GA GE Relaible Selectron NOS 1957 (74ma)
6BG6GA Raytheon NOS 1957 (73ma)
6BG6GA RCA Coronado NOS 1950's (71ma)
6BG6GA Sylvania NOS 1966 (95ma)
6BG6GA Philco used/good/75% 1958 (58ma)
6BH6 Brimar England NOS 1960's (8.6ma)
(!!) 6BH6 GE black plate NOS "U" getter halo 1953 (6.5ma)
(!!) 6BH6 GE black plate NOS "U" getter halo 1956 (8.0ma)
6BH6 RCA black plate NOS "D" getter halo 1961 (6.3ma)
6BH6 RCA black plate NOS "D" getter halo 1949 (7.8ma)
6BH6 RCA black plate NOS 1960's (7.6ma)
6BH6 US Brands NOS (20 in stock) (BEST PRICE)
6BH8 US Brands NOS (12 in stock)
6BJ6 Hitachi Japan like new (8.8mA)
6BJ6 Raytheon JAPAN NOS (8.6mA)
6BJ6 Raytheon NOS 1955 (7.6mA)
6BJ6 RCA NOS (8ma)
6BJ6 Rogers Canada made by Sylvania like new 1955-1956 (8.8mA)
6BJ6 Sylvania NOS 1957 (8.6mA)
6BJ6 Sylvania NOS 1959 (8.2mA)
6BJ6 Tungsol NOS 1963 (9.2mA)
6BJ6 used/good (10 in stock)
6BK4C NOS (10 in stock)
(!!!) (Recommended Single) 6BK7A Raytheon black plates NOS "D" getter 1950's (7.2/8.2ma) (great sub for 6N1P)
(!!!) (Recommended Single) 6BK7B Tungsol gray plates NOS 1960's (8.0/9.8ma) (great sub for 6N1P)
6BL4 RCA NOS 1950's
(!!) 6BL7GT GE "D" getter NOS 1957 (36/37.4ma)
(!!) (Recommended Pair) 6BL7GT GE "D" getter NOS 1957 same build (34/36ma and 37/32ma)
6BL7GT Sylvania low hours 1953 D = rectangle getter halo long scratch on base (33.5/37.5ma)
(!!!) 6BL7GTA GE branded Marconi NOS 1960 era tilted glass (46/53ma) (High Gm) strong single
(!!) 6BL7GTA GE NOS "D" getter 1958 (43ma/53ma)
(!!!) (Recommended Pair) 6BL7GTA GE and GE branded Admiral 1960's (38/40ma and 35/45ma)
6BL7GTA GE gray plates NOS 1974 (47/53ma)
(!!!!) (BEST SINGLE) 6BL7GTA GE "D" getter NOS 1958 (38.0/37.6ma) 1-2% section balance
(!!) (Recommended Pair) 6BL7GTA RCA NOS and like new 1960's (34/40ma and 38.6/39.8ma)
(!) (Recommended Pair) 6BL7GTA RCA coin-base NOS 1970's (33/35ma and 35/30ma)
6BL7GT Sylvania used/good 1954 (39.2/40.4ma)
(!) (Recommended Pair) 6BL7GTA Sylvania Zenith 1963 and 6BL7GT Sylvania 1960 era NOS (38.5/34ma and 33/37ma)
6BM6 Litton Industries USA Klystron NOS (6 in stock)
(!) (SINGLE) 6BM8=ECL82 Mullard UK NOS 1960 (2.1ma/26ma)
(!!) 6BM8=ECL82 Pope Holland used/good 1965 (12.4ma/24ma)
(!!) (PAIR) 6BM8 Sylvania NOS 1970's (2.3/35ma and 2.0/37ma)
6BN4A US Brands NOS (12 in stock)
6BN6 Westinghouse JAPAN NOS 1970's (25 in stock)
6BN8 Sylvania rebranded Tungsol used/strong 1957 faded printing some stains on glass (98/60)
(!!!!!) (Best Quad) 6BQ5=EL84 CBS gray plate NOS 1960 (53, 53.5, 56.5, 59ma) (rare)
(!) (SINGLE) 6BQ5=EL84 Heath Mullard Great Britain used/good 1959 (40ma)
6BQ5 GE NOS 1971 (43.5ma)
6BQ5 GE NOS 1977 (58.5ma)
(!!!!) (Good Value Pair) 6BQ5 GE NOS 1959-1960's (43ma and 46ma)
(!!!!) (Recommended GE Pair) 6BQ5 GE NOS 1966-1982 same build (55.6ma and 60ma)
6BQ5 GE NOS 1960's (47ma)
(Best Value Single) 6BQ5 Hitachi Japan used/tests like new 1960's (44.5ma)
6BQ5 Lindal Japan NOS 1970's (42ma)
6BQ5 Lindal Japan NOS 1978 (59.5ma)
6BQ5 Lindal Japan like new 1970's (50ma)
(Best Single) 6BQ5 Raytheon NOS 1960's (62ma)
6BQ5 RCA Magnavox gray plate used/good 1961 (44ma)
(!!) (Best Single) 6BQ5 RCA NOS 1959 (54.5ma)
(!!!!) (Recommended Pair) 6BQ5 RCA NOS 1960's (50.5ma and 48.2ma)
(!!!) (Recommended Pair) 6BQ5 RCA NOS 1965 and 1971 (48.8ma and 50.5ma)
(!!!) (Best RCA Pair) 6BQ5 RCA NOS 1960's - 1970 (55ma and 58.5ma)
6BQ5 RCA gray plate used/good 1967 (32.6ma)
(!) (SINGLE) 6BQ5 Sylvania black plate NOS 1970's (46ma)
(!!) 6BQ5 Sylvania gray plate NOS 1970's (44ma)
(!!!!) (Best Sylvania Pair) 6BQ5 Sylvania black plate NOS 1970's (56.0ma and 58.0ma)
(!!) 6BQ5 Sylvania gray plate NOS 1960's (63.5ma)
(!!!) (Recommended Pair) 6BQ5 Sylvania gray plate NOS (52.6ma and 54.6ma)
(!!!) (Recommended Pair) 6BQ5 Sylvania gray plate NOS 1960's - 1970's (48ma and 49.5ma)
(!) (Good Value) 6BQ5 Sylvania gray plate used/very good 1960's faded printing (47.5ma)
(!!!!) (Recommended Pair) 6BQ5 Sylvania black plate NOS 1970 era (63ma and 68ma)
(!) (Recommended Single) 6BQ5 Tungsol NOS 1960 era (39ma)
6BQ6GTB=6CU6 RCA NOS (12 in stock)
(!!!) (Best Pair) 6BQ7A GE black plates "U" getter NOS 1957 (12.8/12.2ma and 11.0/11.6ma) (Highest mA and Gm)
(!!!) (Best Single) 6BQ7A GE gray plates U getter NOS 1962 (6.8/6.8ma) (1-2% section balance)
(!!!!) (Best Value Pair) 6BQ7A RCA black plates NOS "D" and "U" getter 1957 (9/16ma and 9/14.5ma)
(!!!!) (Recommended Pair) 6BQ7A RCA black plates NOS 1964-1968 (9.2/11.2ma and 10.2/11ma)
(!!!) (Best Single) 6BQ7A RCA black plates NOS "D" getter 1961 (8.2/8.4ma) 1-3% section balance
6BR8A RCA NOS (3 in stock)
6BR8A US Brands used/good (10 in stock)
6BR8A GE/Sylvania NOS (8 in stock) (also see 6FV8)
6BS8 Tungsol NOS 1960 era (10.2/14ma)
6BS8 RCA NOS 1966 (11.5/10ma)
6BS8 RCA NOS 1963 (10.5/9.0ma)
6BS8 Westinghouse NOS 1961 (9.8/10.2ma)
6BU8 US Brands NOS (12 in stock)
6BV11 US Brands NOS (3 in stock)
6BW11 NOS (15 in stock)
6BW6 Brimar UK NOS 1960's (1 in stock)
6BX7GT CBS NOS 1959 (53ma/73ma)
(!!!) (Recommended Single) 6BX7GT GE "O" getter gray plates 1963 (71/76ma)
(!!!) (Recommended Pair) 6BX7GT GE branded RCA NOS 1958 and 1963 (47ma/52ma and 45/50ma)
(!!!) (Recommended Pair) 6BX7GT GE branded Tungsol black plate "D" getter NOS 1957 (53ma/57ma and 48/53ma)
(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse black plates NOS "O" getter 1962 (71/79ma)
(!!!) (Recommended Single) 6BX7GT GE branded Westinghouse "O" getter gray plates 1960's (43/48ma)
(!!!) (Best Pair) 6BX7GT GE "D" getter NOS 1954-1956 - 1 tube branded Raytheon (53ma/50ma and 47/52ma)
(!!) (Recommeded Pair) 6BX7GT GE branded NOS "D" getter 1958 - 1 tube branded RCA (72ma/95ma and 92/87ma) (highest mA and Gm)
(!!!!) (Best GE Pair #2) 6BX7GT GE "O" getter gray plates 1960's (50/56ma and 53/59ma)
(!!!) (Single) 6BX7GT GE branded RCA "D" getter halo NOS 1957 (70/55ma) (close Gm)
(!!!) (Best Single 1953) 6BX7GT Philco by Sylvania "D" getter halo 1953 (56/63ma)
(!!!) (Best Single 1953) 6BX7GT Raytheon by GE "D" getter halo 1953 (58/68ma)
(!!) 6BX7GT Sylvania branded GE black plates 1967 (44ma/61ma)
(!!) 6BX7GT Sylvania "D" getter halo NOS 1950's (44/46ma) (close triode balance)
(!!) 6BX7GT Sylvania black plates NOS 1960's (56ma/76ma)
6BY8 US Brands NOS (12 in stock)
6BZ6 Tungsol D getter NOS 1950's (90/60)
6BZ6 Tungsol D getter NOS 1950's (81/60)
6BZ6 US Brands (15 in stock)
(!) (SINGLE) 6BZ7=6BQ7A GE GM Delco "U" getter NOS 1950's (11.6/10ma)
(!!!) (Best Single) 6BZ7 RCA black plates large "D" getter NOS 1957 (11.6/12.4ma)
(!!!) 6BZ7 RCA black plates "U" getter NOS 1954 (9.6/12.2ma)
(!!!) (Recommended Single) 6BZ7 RCA black plates "D" getter NOS 1957 (11.4/9.5ma)
(!!!) (Best Single #2) 6C10 GE rebranded RCA NOS 1960's (Ampeg / Fender) (1.0ma/1.5ma/1.2ma)
(!!!!!) (Best Overall Pair) 6C10 GE rebranded RCA NOS 1960's (Ampeg / Fender) (1.6ma/1.6ma/1.3ma) and (1.6ma/1.3ma/1.7ma) (Best Pair in the World)
(!!!!!) (Recommended Pair) 6C10 GE rebranded RCA NOS 1960's (Ampeg / Fender) (1.0ma/1.2ma/1.2ma) and (1.0ma/1.1ma/1.3ma)
(!!!!!) (Recommended Pair) 6C10 GE rebranded Westinghouse NOS 1970 era (Ampeg / Fender) (1.3ma/1.4ma/1.2ma) and (1.3ma/1.2ma/1.1ma)
(!!!!) (Best Single) 6C10 GE rebranded Westinghouse NOS 1970 era (Ampeg / Fender) (1.5ma/1.4ma/1.6ma)
(!!!!) (Best Single) 6C10 RCA branded Westinghouse NOS 1971 (Ampeg / Fender) (1.4ma/2.0ma/1.5ma) (Strongest Single)
(!!!!) (Recommended Pair) 6C4C=6B4G Russian NOS 1958-1967 (79ma and 85ma) (one of the best sounding 6B4G ever made)
(!!!) 6B4G Tungsol NOS 1940's (81ma)
(!!!!) (Recommended Pair) 6C4C=6B4G Russian NOS 1963-1969 (86ma and 88ma) (these are some of the best sounding 6B4G ever made)
(!!!!!) (Recommended Pair) 6C4C=6B4G Russian NOS 1955 and 1968 (91ma and 96ma) (these are some of the best sounding 6B4G ever made)
(!!!) (Recommended Pair) 6C4WA GE JAN and JG NOS 1965-1967 (8.4/8.8ma) 1-3% matched
(!!!) (Recommended Pair) 6C4WA GE JAN NOS 1971-1973 (8.8/9.0ma) 1-2% matched
(!!) (Recommended SINGLE) 6C4WA GE JAN NOS 1972 (10.6ma)
(!!) (Recommended SINGLE) JAN-6C4WA GE NOS 1967-1968 (9.8ma)
(!!!!) (Pair) JAN-6C4WA Sylvania NOS 1975 (7.8ma and 8.6ma)
6C5 Ken Rad metal used/good 1940's (6.5ma)
6C5 Philco metal used/good 1952 (8.2ma)
6C5 RCA metal used/very good 1964 (7.7ma)
6C5 Wards Airline by GE used/tests like new 1946 (9.0ma)
6C5GT National Union NOS 1951 (7.8ma)
6C5GT Super Silvertone USA used/good 1940's (6.8ma)
6C5GT Sylvania NOS 1940's (7.8ma)
6C5GT Sylvania NOS 1948 (7.4ma)
6C6 Cunningham Radiotron used/good 1930's (42/31)
6C6 Philco NOS 1940's (8 in stock) (special price)
6C6 Raytheon used/tests like new 1930's hairline crack in base (2.1ma)
6C6 RCA used/tests like new 1940's (48/31) (2.0ma)
6C6 Sylvania NOS 1950 (48/31)
6C6 Tungsol NOS 1955 (45/31 and 2.1ma)
*** (BEST PRICE) *** 6C6 Sylvania NOS 1940's (10 in stock)
6C8G CBS NOS 1950's (like RCA) (3.7/4.1ma)
6C8G Ken Rad like new 1940's (3.8/3.1ma)
6C8G National Union NOS 1950 era (3.6/5.8ma)
(!!!) (Recommended Pair) 6C8G National Union round black plates 1950 era used/very good (3.4/2.8ma and 3.3/3.4ma) (very close Gm)
6CA4=EZ81 RCA used/good 1962 (53/40 and 53/40)
6CA4=EZ81 Sylvania used/good 1960's (53/40 and 53/40)
6CA4 GE branded Tungsol like new 1960's (55/40 and 56/40)
(!!!) 6CA4=EZ81 GE NOS 1980 (55/40 and 55/40)
(!!!) (BEST PAIR) 6CA4 RCA NOS 1969-1970's (52/40 and 53/40 x 2 tubes)
(!) (BEST PAIR) 6CA4 RCA NOS 1960's - 1972 (54-56/40 and 54-54/40) (Wright, Counterpoint, Cary, Zanden)
6CA4 RCA branded Super Airline NOS 1960 era (54/40 and 54/40)
(!!) (BEST VALUE SINGLE) 6CA4 RCA branded Tungsol NOS 1960's slightly tilted glass and top mica (52/40 and 52/40)
6CA4 RCA NOS 1961-1962 (50/40 and 50/40)
(!!!) (BEST RCA SINGLE) 6CA4 RCA NOS 1963 (53/40 and 54/40)
(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (48-48/40 and 49-49/40)
(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49-49/40 and 48-49/40)
(!!!!) (Best Pair #1) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (50/40 and 50/40 x 2 tubes) 1% matched
6CA4 Silvertone by Sylvania NOS 1960 era (54/40 and 54/40)
6CA4 Sylvania NOS 1960 era (54/40 and 54/40)
(!) (BEST PAIR) 6CA4=EZ81 Sylvania NOS 1960's (53-54/40 and 52-53/40)
6CA4 Philco by Sylvania NOS 1960's (52/40 and 52/40)
6CA4 Tungsol branded RAD TEL NOS 1961 (52/40 and 52/40)
6CB5A RCA NOS 1973 (74ma)
6CB5A RCA NOS 1973 (86ma)
6CB5A RCA NOS faded 1970 (113ma)
(!!) (Recommended Pair) 6CB5A Sylvania branded Dumont NOS 1960's (82.5ma and 85ma)
6CB6 Telefunken Diamond <> NOS 1956 (6ma)
(!!) (BEST PAIR) 6CB6A RCA "D" getter NOS around 1960 (9.0ma and 9.2ma)
6CB6A RCA NOS (10 in stock)
6CD6GA CBS NOS 1960 (2 in stock: 88ma and 77ma)
6CD6GA US Brands NOS (4 in stock)
6CE3=6CD3 Sylvania NOS (2 in stock)
6CG3 GE branded Admiral NOS 1960's (1 in stock)
6CG7 Sylvania Emerson used/good chrome electrostatic shield between plates "U" getter 1957 (6.2/6.8ma)
6CG7 Sylvania gray plates NOS "U" getter 1958 with chrome electrostatic shield between plates (6.8ma/8.8ma)
(Recommended Pair) 6CH6=EL821 Brimar UK like new 1956 (35ma and 35.2ma)
6CH6=EL821 Brimar UK like new 1956 (2 in stock)
6CH8 US Brands NOS (8 in stock)
6CJ3=6DW4B Raytheon Japan NOS (82/60)
(PAIR) 6CJ3=6DW4B Sylvania copper plates used/good 1970 era (82-82/60)
6CJ3 Sylvania NOS no printing 1970's (87/60)
6CJ3 Sylvania used/good copper plate 1970's (84/60)
6CK3 GE NOS 1973 (1 pair)
6CL3=6CK3 RCA NOS (1 pair)
6CL3=6CK3 RCA NOS (1 pair)
6CL3=6DW4B Westinghouse Japan NOS (1 pair)
6CL3=6CK3 GE NOS (7 in stock)
6CL6 RCA black plate NOS 1950's (34.2ma)
6CL6 RCA black plate NOS 1953 (35.5ma)
6CL6 RCA FAA NOS 1963 (34.5ma)
(!!) (2nd Best Quad) 6CL6 RCA FAA NOS 1963 (31.6, 33, 33, 33ma)
6CL6 RCA FAA NOS 1963 (29ma)
(!!) (PAIR) 6CL6 RCA NOS 1970's (28.5ma and 29ma)
6CL6 US Brands used/good (8 in stock)
6CL6 US Brands NOS (29 in stock)
6CL8A GE NOS (8 in stock)
6CL8A RCA NOS (2 in stock)
6CL8A Sylvania NOS (15 in stock)
6CM7 GE NOS 1974 (4.4ma and 19ma)
(!!) (BEST PAIR) 6CM7 GE NOS 1960's (5.7/5.9ma and 21.2/21.6ma)
(!!) (Recommended Pair) 6CM7 GE NOS 1960-1961 (4.3/4.2ma and 18.5/17.2ma)
6CM7 GE Zenith NOS 1969 (7.5ma and 25ma) (highest mA and Gm)
6CM7 RCA black plates NOS 1956 (4.3ma and 22ma) (rare)
(!) (BEST SINGLE) 6CM7 RCA NOS 1960's (6.5ma and 21.6ma)
6CM7 RCA NOS 1960's (4.6ma and 17.5ma)
(!!) (PAIR) 6CM7 Sylvania NOS 1960's - 1970 (5.5/6.6ma and 24.6/26ma)
6CM7 Westinghouse Canada NOS 1960's (5.0ma and 16.6ma)
6CM8 NOS (5 in stock)
EH90=6CS6 Valvo by Mullard UK NOS 1964-1965 (3 in stock)
6CS6 RCA NOS (2 in stock)
6CS6 Sylvania NOS 1960's (3 in stock)
6CS7 GE branded Tungsol NOS 1961 era (21/11ma)
(!!) (BEST PAIR) 6CS7 GE Canada black plates NOS 1964-1970 (20/11ma and 20.6/10ma)
6CS7 GE Canada NOS black plates 1960's (18/11.2ma)
6CS7 Raytheon by Toshiba Japan gray plates NOS 1970 era (21.5/10.2ma)
6CS7 RCA branded Westinghouse NOS 1967 (32ma and 10.6ma)
(!!) (RCA Pair) 6CS7 RCA NOS 1962-1965 (17/11ma and 17/12.6ma)
6CS7 RCA NOS 1970's (23.6ma and 13.5ma)
6CS7 Sylvania branded RCA used/good "U" getter halo 1950's (18/8.2ma)
(!!) (Best Pair) 6CS7 Sylvania NOS (1) RCA "U" getter (1) Philco "O" getter 1960 era (23/11ma and 23/11ma)
(!!) (Recommended Pair) 6CS7 Sylvania 1956 and Sylvania branded GM Delco "D" getter NOS 1956 with partially wrinkled top getter (19/10.8ma and 18.5/11.2ma) 1-3% matched
6CS7 Tungsol NOS black plates 1960's (21/10ma) (internals like Sylvania)
6CW4 GE like new 1980 (120/60)
(!!) (PAIR) 6CW4 GE NOS 1980-1981 (88/60 and 91/60)
(!!!!) (BEST Pair) 6CW4 GE NOS 1966-1970 (117/60 and 118/60) (strong emission)
(!!!) (Best Pair #3) 6CW4 RCA NOS 1961-1965 (103/60 and 102/60)
(!!) (Best Pair #1) 6CW4 RCA NOS 1963 (120/60 and 120/60)
(!!!) (Best Pair #2) 6CW4 RCA NOS 1963-1968 (112/60 and 108/60)
6CW4 RCA NOS 1970 era (1 in stock)
(!!) (Best Pair) 6CW4 Sylvania NOS 1960's (120/60 and 120/60)
6CW4 Tungsol NOS (1 in stock)
6CX8 US Brands NOS (14 in stock)
6CX8 US Brands NOS (2 for $5)
6CZ5 GE Canada black plate NOS 1969 (49ma) (Same build as RCA)
6CZ5 GE Europe gray plate NOS 1975 (60ma)
6CZ5 RCA black plate short bottle used/good 1960 era (48ma)
6D4 CBS NOS 1959 (6 in stock)
6D4 Chatham by RCA NOS 1956 (3 in stock)
6D4 Sylvania NOS 1974 (6 in stock)
6D4 Sylvania NOS 1967 (10 in stock)
6D6 Ken Rad NOS 1940's hairline crack in base
6D6 RCA Cunningham used/tests like new 1930's (73/40)
(1 set of 4 tubes) 6D6 Mixed US Brands used/good 1930's - 1940's (set of 4)
6D6 Sylvania NOS small 1/8" glass chip inside tube at bottom
6D6 US Brands used/good (2 for $8)
6D8G Sylvania 1947 branded GE 1949 used/tests like new (100/60)
6D8EG Philco NOS (1 in stock)
(Best Single) 6D8G Sylvania NOS 1947 (101/60)
6DA4A Raytheon Japan black base NOS 1960's (91/60)
6DA4A RCA black base NOS 1960's (92/60)
6DA4A Sylvania black base NOS 1970 era (82/60)
6DA5=EM81 Matsushita Japan NOS 1960's (3 in stock)
6DE4 Sylvania used/like new (1 pair)
6DE4 Tungsol NOS 1960's
6DE6 US Brands NOS (10 in stock)
(!) 6DE7 GE Admiral black plates NOS 1965 (4.5/27ma) (Woo Audio)
(!!!) 6DE7 GE Canada black plates NOS 1967 (4.6/42ma) (Woo Audio)
6DE7 RCA NOS 1966 (5.2/40ma)
6DE7 RCA NOS 1960's (4.5/34ma)
(!!!) 6DE7 Sylvania black plates "U" getter NOS 1950's (8/31ma) (Woo Audio)
6DE7 Sylvania NOS 1960's (5.3/27ma)
(!!!) (Recommended Single) 6DJ8 Amperex Bugle Boy Holland like new 1965 (12.6/13.6ma)
(!!!) (BEST SINGLE) 6DJ8 Amperex Holland NOS 1965 (14.6/18.6ma) (sweet and musical)
(!) 6DJ8 Brimar England NOS 1960's (13.0/14.3ma)
6DJ8=CV5358 Holland A frame used good 1971 (9.6/10ma)
(!!!!) (Best Value Single) JAN-6DJ8=ECC88 Philips by Sylvania NOS 1987 mismatched sections (10/16ma)
(!!!!) (Best Overall Single) 6DJ8=ECC88 Philips by Sylvania NOS 1987 (15.0/15.2ma) 1-2% section balance
(!) (~ Best Value Single ~) 6DJ8 EI YUGO NOS 1977 (13.2/13.6ma)
(!!) 6DJ8 EI YUGO used/good 1977 branded RCA 1984 (13.4/15.6ma)
6DJ8 GE NOS 1964 orange printing (12.6/16.4ma)
6DJ8 GE NOS 1976 (25/27.8ma)
(!!!) (Recommended Pair) 6DJ8 GE NOS coated glass 1975-1978 (19.8/19.2ma and 17/19.8ma) (smooth and warm)
(!!) (Recommended Pair) 6DJ8 GE NOS 1974-1980 (13.5/14.2ma and 12.4/13.5ma)
(!!!) (Recommended Pair) 6DJ8 GE NOS 1964-1965 (smooth and warm)
(!) (SINGLE) JAN-6DJ8 GE NOS 1982 (13/16.8ma)
(!!) (Recommended Pair) 6DJ8 Pope and Philips Holland NOS 1967-1968 (15.8/17.4ma and 16.0/18.8ma)
(!) (#1 6DJ8 Best Value Japan) 6DJ8=M3624 Toshiba Japan Tektronix Checked NOS 1960's (11.6/13.6ma)
(!!!) (BEST PAIR) 6DJ8 Matshushita JAPAN branded RCA NOS 1975 (19/18ma and 17/20ma)
(!!!!) (Recommended Single) 6DJ8 Philips Miniwatt Holland NOS 1960 era large "O" getter halo (18.0/19.4ma)
(!) 6DJ8 Mullard England branded Amperex "A" frame like new 1986 (12.6/13.4ma)
(!!!!) (Recommended Pair) 6DJ8 Philips ECG USA by Sylvania NOS 1987 (13.5/18.5ma and 13.5/19.0ma) 1-3% matched
(!!!) (Best Pair) 6DJ8 Philips ECG USA by Sylvania NOS 1987 (18/20ma and 16.5/18.5ma)
(!!!!) (Single) 6DJ8 Philips Holland low hours/like new 1967 (13.6/14.4ma) (sonically the same as Bugle Boy)
(!!!!) (BEST Holland Pair) ECC88=6DJ8 Philips Holland NOS 1972-1974 (13.4/12.4ma and 13.8/12.4ma)
(!!!!) (Recommended Mullard Single) 6DJ8 RCA Mullard NOS "A" Frame getter halo 1976 (10.6/12.6ma)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded Amperex NOS 1982 (14.0/15.2ma and 16.0/16.4ma)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded United and International NOS 1977-1980 (15.4/15.8ma and 14.4/16.0ma) (Highest ma and Gm)
(!!!) (~ Good Value Pair ~) 6DJ8 Russian USSR branded United and International NOS 1977-1980 (14.0/15.2ma and 16.0/16.4ma) (Highest ma and Gm)
(!!!) (SINGLE) 6DJ8 Sylvania JAN NOS 1972 (13.5/17.4ma)
(!!!!) (BEST PAIR) 6DJ8 Sylvania branded GE NOS 1961-1962 (21.6/23ma and 21.5/22ma)
(!!!!) (BEST PAIR 1960's) 6DJ8 Sylvania NOS 1960's (17.0/17.8ma and 14.5/19ma)
(!!) 6DJ8 Sylvania NOS 1960's (12.4/14.2ma)
(!!!) (Recommended Pair) 6DJ8=ECC88 Telefunken Germany <> bottom NOS branded Valvo 1960's (12/12.8ma and 13.8/12.6ma)
(BEST PRICE) 6DK6 NOS (10 for $12.99)
(!) 6DL5=EL95 Mullard Philips UK NOS 1969 (26.6ma)
(!) 6DL5=EL95 Philips Miniwatt Holland made in Moza Italy NOS 1965 (20ma)
(!) 6DL5=EL95 Philips Miniwatt Holland NOS 1960 (23.2ma)
(!) 6DL5=EL95 Siemens Germany used/good 1966 (23ma)
(!) 6DL5=EL95 Siemens Germany branded RCA NOS 1969 (29ma)
6DL5=EL95 Telefunken Germany <> bottom used/good 1964 (21ma)
(!) 6DL5=EL95 Telefunken Germany <> bottom branded Philips NOS 1970 era (25.5ma)
(Best Single) 6DN7 GE branded RCA NOS 1962 (45ma and 8.2ma)
(!!) (BEST SINGLE) 6DN7 GE branded RCA NOS 1960's (64ma and 7.2ma)
(BEST SINGLE) 6DN7 RCA NOS 1968 (38ma and 10.2ma)
6DN7 RCA Mexco coin-base same internals as Sylvania NOS 1970's (40ma and 8.5ma)
(Best Single) 6DN7 Sylvania NOS 1960's (60ma/8.3ma)
6DN7 Sylvania NOS 1970 era (39ma and 7.5ma)
6DQ5 GE Admiral NOS 1966 (90ma)
6DQ5 GE Admiral NOS 1966 (95ma)
6DQ5 GE Amperex NOS 1970 era (131ma)
6DQ5 GE Amperex NOS 1968 (88ma)
6DQ5 RCA black plate NOS 1974 (105.6ma)
(!) (BEST SINGLE) 6DQ5 Sylvania NOS 1960's (135ma)
6DQ5 RCA NOS 1970 (99ma)
6DQ6A Channel Master JAPAN used/strong (75ma)
6DQ6B Raytheon JAPAN like new 1960's (60ma)
(!!) (BEST PAIR) 6DQ6B Sylvania NOS 1960's same build (78ma and 80ma)
6DR7 GE black plates NOS 1963 (1.5ma/57ma)
6DR7 GE branded Philco black plates NOS 1969 (2.0ma/38ma)
(!!!) (Best RCA Pair) 6DR7 RCA NOS 1975 (1.5/34ma and 1.6/42ma)
6DR7 RCA Rauland NOS 1961 (1.7ma/50ma)
(!!) (PAIR) 6DR7 Sylvania and Sylvania branded Raytheon black plates NOS 1970 era (1.4ma/37ma and 2.0/33ma)
6DS4 GE NOS 1970 (1 in stock)
6DS4 GE NOS 1967-1971 (1 pair)
6DS4 RCA NOS (1 in stock)
6DT5 US Brands NOS (4 in stock)
6DT8 RCA black plates D getter 1957 NOS (1 in stock)
6DT8 RCA black plates D getter 1959 NOS (1 in stock)
6DW4 Sylvania branded GE tipped top NOS (1 pair)
6DW4 Sylvania NOS (89/60)
6DW4 Sylvania tipped top like new
(!) (Good Value Pair) 6DW4B Raytheon Japan like new and Westinghouse NOS 1960's (82-83/60)
6DW4B Westinghouse Japan like new 1960's
6DX8=ECL84 GE Hitachi JAPAN 1978 (3.0mA and 14mA) (Shindo)
6DX8=ECL84 GE Hitachi JAPAN 1972 (5.1mA and 13mA) (Shindo)
6DX8=ECL84 Motorola Toshiba JAPAN used/good 1960's (3.3mA and 12.5mA) (Shindo)
6DX8=ECL84 RCA Mullard UK NOS 1976 (3.1ma and 18ma) (Shindo Monbrison)
6DX8=ECL84 Zenith Sylvania NOS 1962 (3.7mA and 20mA) (Shindo)
(!) (PAIR) 6DZ4 GE NOS 1960's (19ma and 19ma)
(!!!) (Recommended Pair) 6DZ4 GE NOS 1960's (21ma and 22ma)
6E5 Ken Rad 1946 like new (bright eye)
(!!) 6E5 RCA NOS 1940's (2 in stock)
6E5 Sylvania NOS 1946 bright eye in white box
*** (SPECIAL PRICE) *** 6E5 US Brands NOS (18 in stock)
6EA7 GE NOS 1965 (2.4ma/57.5ma)
(!!) 6EA7=6EM7 Sylvania coin-base NOS 1970's (1.8/53.6ma)
6EA8 Zenith GE like new 1960's
6EA8 Russian NOS branded Realistic Life-Time gold pins (1 in stock)
6EA8 Sylvania branded Zenith NOS 1962 (18ma and 11ma)
6EA8 Sylvania NOS 1960's (16.6ma and 11.6ma)
6EA8 RCA NOS (1 in stock) (highest mA and Gm)
(Best Single) 6EB8 RCA NOS 1960's
6EB8 RCA used/good 1960's
6EB8 Super Radiotron Australia NOS 1960's
6EF4=6EJ4A GE NOS
6EH7=EF183 Sylvania NOS (4 in stock)
6EJ7 GE NOS (7.3ma)
6EJ7 RCA by Siemens Germany NOS 1971 (10ma)
6EJ7 RCA by Siemens Germany NOS 1972 (12.4ma)
6EJ7 RCA East Germany NOS 1970's (13.5ma)
6EJ7 Sylvania NOS (10.2ma)
6EJ7 Sylvania NOS (9ma)
6EM5 US Brands NOS (24 in stock)
6EM7 GE Amperex NOS 1970's (2.4ma/34ma)
6EM7 GE Canada NOS 1960's (2.9ma/30ma)
(!!) (Best Single) 6EM7 RCA black plates NOS 1969 (2.9ma and 53ma)
(!) (BEST SINGLE) 6EM7 RCA coin-base black plates NOS 1970's (2.4ma and 57ma)
6EM7 RCA black plates NOS 1965 (1.2ma and 30ma)
(!!!!) (Best Pair) 6EA7 RCA black plates NOS 1964 (2.4/40.4ma and 2.4/36ma)
6EM7 RCA NOS 1965 (4.2ma/31ma)
(!!!) (Recommended Pair) 6EM7=6EA7 Sylvania coin-base NOS 1970's (1.5ma/73ma and 1.8ma/65ma)
(!!) 6EA7 Sylvania NOS 1960 era (2.1/43ma)
(!!) 6EM7 Sylvania NOS 1960 era (1.5/55ma)
6EM7 Sylvania NOS 1960's (1.7ma/75ma)
6EM7 Sylvania Silvertone NOS 1960's (1.5ma/55ma)
6EM7 Sylvania NOS 1970 (1.5ma/47ma)
6ER5=EC95 NOS (3 pairs in stock)
6ES8 Sylvania rebranded International NOS 1960's
6ET6=EF98 International Mazda France NOS (2 in stock)
6ET6=EF98 Valvo by Mazda France NOS 1960-1965 (3 in stock)
6EU7 GE NOS 1960's (48/32 and 56/32)
(!!) (Recommended Pair) 6EU7 GE NOS 1970-1978 (44-48/32 and 43-48/32)
(!!!!) (BEST PAIR) 6EU7 GE NOS 1969 same date codes (40-46/32 and 42-46/32)
(!!) (BEST PAIR) 6EU7 GE NOS 1970-1978 (46-47/32 and 47-47/32) 1-2% matched
(!!!) 6EU7 GE NOS pinched gray plates 1970 (48/32 and 50/32)
6EU7 GE branded as El Menco USA NOS (44/32 and 49/32)
(!) (Recommended Single) 6EU7 RCA NOS 1970's (51/32 and 60/32)
(!) 6EU7 RCA NOS 1970 era (51/32 and 52/32)
(!!!) (Recommended Single) 6EU7 RCA NOS 1967 (53/32 and 60/32)
(!!!!) (Best Pair) 6EU7 RCA NOS 1967 (57-50/32 and 52/56/32)
(!!!) 6EU7 RCA used/good 1963 (38/32 and 52/32)
(!!) (Recommended Sylvania) 6EU7 Sylvania branded RCA NOS 1970's (68/32 and 76/32)
(!!) 6EU7 Sylvania pinched gray plates NOS 1970's (67/32 and 70/32)
6EW6 GE NOS 1970's (3 in stock)
6EW6 Sylvania NOS (2 in stock)
(!) (#2 6EW7 Single Tube) 6EW7 GE Japan BIG BOTTLE NOS 1960's (5.0/37ma)
(!!) 6EW7 GE PHILCO BIG BOTTLE black plates NOS 1964 (4.8/62ma)
(!!!) (2nd Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1971 (4.9/5.2ma and 59/56ma)
(!!!!) (Recommended Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (4.9/4.6ma and 42/43ma)
6EW7 RCA BIG BOTTLE black plates NOS 1961 era (5.4/42ma)
6EW7 RCA BIG BOTTLE NOS 1960's (5.6/36ma)
(!!) 6EW7 Sylvania BIG BOTTLE branded GE NOS 1960's (3.5/36.5ma)
(!!) (Best Single) 6EW7 Sylvania BIG BOTTLE NOS 1960's (7.8/56ma) (highest Ma and Gm)
6EX6=6CD6GA Raytheon NOS
6EY6 US Brands NOS (2 in stock)
6EZ5 US Brands NOS (3 in stock)
6F5 GE Amperex metal can NOS (1.0ma Gm=1500)
(Best Single) 6F5 GE Amperex metal can NOS (1.6ma Gm=1800)
6F5 US Brands metal can NOS (9 in stock)
6F5 RCA metal can NOS 1950 (1.0ma Gm=1500)
6F5 RCA Victor metal can used/good 1940's (0.6ma Gm=900)
6F5 Sylvania metal can NOS 1954 (1.0ma Gm=1500)
6F6 Ken Rad metal can NOS 1950 (33ma)
6F6 Ken Rad metal can NOS early 1940's (42ma)
(!!!) (Recommended Pair) 6F6 RCA metal can NOS 1963-1968 (35.6ma and 38.8ma)
6F6=VT-66 RCA metal can NOS 1940's (40.5ma)
(!!!!) (Pair #5) 6F6G Marconi Spain NOS 1949 (31.6ma and 32.0ma)
(!!!!) (Best Pair #3) 6F6G Marconi Spain NOS 1949 (35.8ma and 38ma)
(!!!!) (Best Pair #4) 6F6G Marconi Spain NOS 1949 (35.2ma and 39.4ma)
6F6G National Union black plate NOS 1951 (40.5ma)
6F6G National Union used/good mid-1940's (47ma)
6F6G RCA Cunningham used/good 1947 (31ma)
6F6G RCA NOS 1949 (35.8ma)
6F6G RCA NOS 1957 (42.2ma)
(!) 6F6G=VT-66A Sylvania used/tests like new 1940's (45ma)
(!) 6F6G Sylvania Philco NOS 1949 (36.5ma)
(!!!) (Best Single) 6F6G Tungsol NOS 1950 (37.2ma)
6F6GT GE NOS 1956 (36ma)
6F7G RCA Cunningham like new 1930's
(Best Price) 6F7G US Brands NOS 1950's (10 for $39.99)
6F7G US Brands NOS (15 in stock) (BEST PRICE)
(1 set of 4) 6F7G RCA NOS 1950's (set of 4)
(!!!) (BEST SINGLE) JAN-CRP-6F8G=VT-99 Raytheon parallel black plates 1944 (8ma and 8ma)
(!!) (Single) 6F8G National Union parallel plates like new 1950 (9.4ma and 8.0ma)
6F8G RCA gray ribbed staggered plates NOS no printing 1950 era (7ma/8ma)
6F8G RCA Radiotron staggered black ribbed plates used/good 1940's (8.2/9.6ma)
6F8G RCA Radiotron staggered black ribbed plates used/good 1940's (9.0/7.2ma)
(!) (SINGLE) 6F8G Sylvania Zenith coated glass parallel plates like new 1940's (9.0/8.4ma)
(!!!) (Single) 6F8G Tungsol parallel ribbed plates used/good 1940's (7.6/6.7ma)
6FH5 US Brands NOS (2 in stock)
6FM7 GE branded RCA used/tests like new
6FM7 GE NOS (5 in stock) (Dennis Had Inspire preamp)
6FM7 Sylvania used/good no printing
6FM7 Sylvania black plates NOS (3 in stock)
6FM8 NOS (8 in stock)
(!!!!) (Recommended Pair) 6FQ7 Zenith by GE NOS 1977 (6.5/10.6ma and 6.7/9.2ma)
(!!!!) (Best Pair) 6FQ7 GE NOS 1960's (7.5/8.0ma and 7.0/7.2ma) (Close Gm) 1-5% matched
(!!) (Best Value Pair) 6FQ7 GE branded Amperex and Westinghouse NOS 1970's (6.4/7.4ma and 6.4/7.4ma) 1-2% matched
(!!!) (Recommended Pair) 6FQ7 GE NOS 1970's (7.2/9.5ma and 6.5/9.4ma)
(!!!) (Best Pair) 6FQ7 GE NOS 1970's (9.8/8.8ma and 8.5/9.6ma) (close Gm)
(!!!!) (Best Value Pair) 6FQ7 RCA clear top NOS 1967 (6.2/6.0ma and 6.0/7.4ma) (same Gm) (STAX, MARANTZ, CONRAD JOHNSON)
(!!) 6FQ7 RCA clear top NOS 1976 (7ma/8ma)
(!!!) (Recommended Pair) 6FQ7 Sylvania NOS 1960's same build (6.5/7.2ma and 6.8/7.6ma)
(!!!) (Recommended Pair) 6FQ7 Sylvania NOS 1970's same build (6.4/6.8ma and 6.4/6.4ma)
(!!!!) (Good Value Pair) 6FQ7 Philips by Sylvania NOS 1980 era (6.2/6.0ma and 6.0/6.2ma)
(!!!!) (Recommended GE Pair) 6FQ7 Zenith by GE NOS 1977 1-3% matched (7.0/7.6m and 6.8/7.5ma)
6FV6 US Brands NOS (12 in stock)
6FW5 GE rebranded branded RCA NOS 1966 (80ma)
6FY7 NOS (8 in stock)
6G11 US Brands NOS (10 in stock)
(!!) (1 Pair) 6G6G RCA NOS branded Sylvania and GE 1940's same build (16.2ma and 17.5ma)
6G6G National Union NOS 1950's (14.6ma)
6G6G National Union NOS 1950's (13.5ma)
6G6G RCA NOS 1940's (16ma)
(!!) (1 Pair) 6G6G RCA NOS branded RCA and Raytheon 1945-1950 era same build (13.6ma and 14.0ma)
6GB5=EL500 RCA France NOS (82/60)
6GD7 Sylvania branded Dumont NOS (4 in stock)
6GE5 Sylvania engineering sample like new 1960's in WB getters like new (48ma)
6GF7 and 6GF7A NOS (9 in stock)
6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (10 in stock)
(!!) (Best Pair) 6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (13.6/13.5ma and 13.4/13.0ma)
6GH8A RCA NOS 1968 (14.2/13.2ma)
6GK5=6FQ5A GE branded RCA NOS (17.4ma)
6GK5=6FQ5A GE NOS (9ma)
(!) (Best Single) 6GK5=6FQ5A Sylvania branded Raytheon NOS (15.2ma)
(!!) (Best Pair) 6GK5=6FQ5A Hitachi Japan rebranded Raytheon and GE NOS 1970 era (9.6/10ma)
(!!) (Recommended Pair) 6GK5=6FQ5A Hitachi Japan rebranded Raytheon NOS (8.5/8.6ma)
(!) (Best Single) 6GK5=6FQ5A RCA NOS 1960's (13.6ma)
6GK5=6FQ5A Super Radiotron Australia NOS 1960's (9ma)
6GK5=6FQ5A Sylvania NOS (10ma)
(!!!) (Recommended Pair) 6GK5=6FQ5A Sylvania rebranded Raytheon NOS (11.0ma and 11.4ma)
6GN8=6EB8 US BRANDS NOS (35 in stock)
(!) (PAIR) 6GM5 Sylvania branded RCA NOS (52ma and 52ma)
(!!) (Recommended Pair) 6GM5 Sylvania rebranded Tungsol and Sylvania NOS 1960 era (59ma and 60ma)
6GM5 Sylvania rebranded GE NOS 1966 (64.5ma)
6GM6 NOS (24 in stock)
(!!!) 6GM8=ECC86 Amperex Holland NOS 1975 faded printing (4.0/4.5ma)
(!) (Recommended Single) 6GM8=ECC86 SIEMENS HOLLAND NOS 1970 (4.0/5.0ma)
6GU5 US Brands NOS (1 in stock)
6GU7 Magnavox RCA used/like new 1964 (10.2/9.8ma)
6GU7 RCA NOS 1975 (8.6/10ma)
6GU7 Sylvania Zenith NOS 1962 (14.0/14.6ma)
6GV5 US Brands NOS (10 in stock)
(!!) (Best 6GV8) 6GV8=ECL85 RCA Holland NOS (1 in stock)
(Best Value) 6GV8=ECL85 RCA Mexico NOS (2 in stock)
6GV8 Super Radiotron AWV Australia NOS 1960's
6GY6 NOS (38 in stock)
6GY8 US Brands NOS (16 in stock)
6H6 GE metal can NOS (7 in stock)
6H6 US Brands metal can NOS (12 in stock)
6H6GT Sylvania NOS (8 in stock)
6H6GT Tungsol like new 1946 some scrapes on the base (49-50/40)
6H6GT=VT-90A Sylvania JAN like new 1940's (20 in stock)
(!!!) (Best Pair) 6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971-1972 (12.0ma and 12.8ma)
6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971-1972 (8 in stock)
(!!) (#1 6HM5 Japan Pair) 6HA5=6HM5 Hitachi Japan branded RCA NOS 1970's (14.5ma and 15ma) (Highest Ma and Gm)
6HB5 GE NOS 1977 (108ma)
6HB5 Zenith by GE NOS 1977 (92ma)
(!!) (PAIR) 6HB5 Sylvania branded RCA NOS (74ma and 79ma)
(!!) (Recommended Pair) 6HB5 Sylvania NOS branded Philco and Zenith 1963-1969 (107ma and 116ma)
6HB5 Sylvania NOS (90ma)
(!!!) 6HF5 GE NOS 1975 (111ma)
6HF5 RCA NOS 1968 (101ma)
6HF5 RCA NOS 1972 (123ma)
6HF5 RCA NOS 1972 (90ma)
6HF5 Sylvania NOS 1970 era some small mica flakes inside tube (96ma)
(!!!) (PAIR) 6HF5 Sylvania NOS 1970's (83ma and 85ma)
6HF8 US Brands NOS (8 in stock)
(BEST PRICE) 6HG8=ECF86 NOS (4 for $9.99)
6HJ5 Raytheon side getter NOS (91/60)
(!!!!) (Recommended Quad) 6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971 (9.8/9.8/10.0/10.2ma)
6HQ5 GE European made NOS (13.5ma)
(!) (~ Recommended Pair ~) 6HQ5 Sylvania branded Raytheon NOS 1970 era same build (13.2/14.6ma)
(!) (~ Recommended Pair ~) 6HQ5 Sylvania NOS 1970 era same build (12.5/13ma)
6HQ5 Sylvania NOS (9.6ma)
6HR6 RCA branded GM Radio NOS 1960's (115/60 and 13ma)
6HR6 RCA NOS 1973 (93/60 and 9.5ma)
6HS5 US Brands NOS (28 in stock)
6HS6 RCA branded Amperex NOS 1968 (8.5ma)
6HS6 RCA branded Sylvania NOS 1960's (7.2ma)
6HS6 RCA NOS 1960's (7.2ma)
6HS6 RCA NOS 1966 (8.4ma)
6HS8=6BU8 GE NOS (5 in stock)
ELL80=6HU8 Valvo branded Sylvania NOS 1967 (24ma and 21ma)
(PAIR) 6HV5A GE branded RCA NOS original boxes (101/60 x 2 tubes)
6HV5A GE International NOS (100/60)
6HV5A Sylvania NOS (99/60)
6J4 GE Canada NOS 1967 (66/45)
6J4WA Sylvania NOS 1967 (69/45)
6J4WB GE Canada NOS 1966 (66/45)
(!!!!!) (Recommended Pair) 6J5GT Ken Rad black ribbed plates NOS 1942 (10.2ma and 10.4ma)
(!!!!) (Best Pair #1) 6J5GT Ken Rad black ribbed plates NOS 1942 (10.4ma and 10.2ma)
(!!!!) (Best Quad #2) 6J5GT Sylvania lightning logo NOS 1945-1946 (8.2/8.0/8.0/8.2ma)
6J6A GE Great Britain made in Europe NOS "D" getter halo early 1960's (5 in stock)
(!!!) (Recommended Pair) 6J6A Sylvania NOS
6J6A Sylvania NOS (10 in stock)
6J6A Tungsol NOS "D" getter 1961 (3 in stock)
6J6WA GE Canada NOS 1960's (1 in stock)
6J6WB RCA JAN NOS (16 in stock)
6J7 Ken Rad used/good 1951 (1.9ma)
(!!!) (1 Pair) 6J7 RCA Radiotron used/good 1940's (1.7ma and 1.8ma)
6J7 RCA used/good 1964 (1.6ma)
(BEST SINGLE) 6J7 RCA NOS 1954 (2.0ma)
6J7 RCA NOS 1963 (1.8ma)
6J7 RCA NOS 1967 (2.0ma)
6J7 Sylvania metal can used/good (2.0ma)
6J7G Continental NOS 1940's
6J7G Raytheon NOS 1950's
6J7G Sylvania NOS 1940's
(!) 6J7GT Hytron used/strong 1940's (2.6ma)
6J8G Ken Rad NOS 1940's (41/25 and 29/13)
6J8G Sylvania branded Cunningham NOS 1947 (52/25 and 28/13)
(!) (BEST SINGLE) 6JB6 Sylvania branded RCA NOS 1970's (81ma)
(!!!) (Recommended Pair) 6JB6 Sylvania NOS (72ma and 72ma)
6JB6 Sylvania used/good (73ma)
6JB6A GE NOS (61ma)
(!!!) (Recommended PAIR) 6JB6A RCA NOS 1970 era same build (74ma and 80ma) (DRAKE)
6JB6A RCA used/good faded printing (63ma)
(!) (BEST SINGLE) 6JB6A RCA NOS 1970 era (100ma)
6JC6A GE Zenith NOS 1972 (10.5ma)
6JC6A Raytheon Japan NOS 1960's (16.0ma) (High Ma and Gm)
(!!) (Best Value Pair) 6JC6A Raytheon Japan NOS 1970's same build (9ma and 9ma) (High Gm)
6JC6A Raytheon Japan NOS 1960's (15.5ma) (High Ma and Gm)
6JC6A Sylvania NOS 1970's (9.6ma)
6JD5=6HZ5 Sylvania NOS (1 in stock)
6JD6 GE NOS (15.2ma)
(!!) (~ Recommended Pair ~) 6JD6 GE branded RCA NOS same date codes (13ma and 14ma)
6JD6 Raytheon JAPAN NOS 1960's (30 in stock)
6JE6 Sylvania used/like new 1960's (103ma)
6JE6A RCA NOS 1960's (94mA)
6JE6A RCA Setchell Carlson used/good 1965 (87mA)
6JE6A RCA used/very good 1967 (103mA)
(!!) 6JE6B GE low hours/tests like new 1968 (137ma)
(!) (BEST GE SINGLE) 6JE6C=6LQ6 GE NOS 1975 (96ma)
(!!) (Good Value Pair) 6JE6C=6LQ6 GE like new and GE/Westinghouse NOS 1970's - 1982 (68ma and 72ma)
6JE6C=6LQ6 GE used/good 1970 era (71ma)
6JE6C=6LQ6 Sylvania NOS 1970's (94ma)
6JE6C=6LQ6 Sylvania NOS 1970's (74ma)
6LQ6=6JE6C Sylvania used/good 1970's (86ma)
6JF6 Mixed Brands NOS (7 in stock)
6JG6 RCA NOS 1965 (83ma)
(!!) (Best RCA Pair) 6JG6A RCA NOS 1970's (71ma and 73ma)
6JG6A RCA NOS 1971 (62ma)
6JG6A Sylvania tipped top NOS 1970's (108ma)
6JH6=6BZ6 US Brands NOS (12 in stock)
6JH8 US Brands NOS (1 in stock)
6JK5 US Brands NOS (2 in stock)
6JK8 GE NOS (5 in stock)
6JM6 and 6JM6A USA and JAPAN NOS (10 in stock)
6JS6A RCA NOS 1967 (92ma)
6JS6B GE branded Zenith NOS (93ma)
(!!) (Recommended Pair) 6JS6C GE Realistic and GE NOS 1970's - 1981 (70ma and 76ma)
6JS6C RCA NOS 1970's (143ma)
6JS6C RCA NOS (72ma)
6JS6C RCA used/good 1970's (68ma)
6JS6C Sylvania branded Philco NOS (91ma)
6JS6C Sylvania branded RCA NOS 1970's (64ma)
6JS6C Sylvania NOS (75ma)
(!!!) (Best Overall Pair) 6JS6C Sylvania Zenith and Sylvania NOS same build (104ma and 107ma)
(!) (SINGLE) 6JS6C Sylvania Zenith NOS (75ma)
(!!!) (Recommended Pair) 6JT6A RCA rebranded GE and Amperex NOS 1970 era (66ma and 67ma)
(!!!!) (Good Value Pair) 6JT6A RCA like new and NOS 1960's (58ma and 60ma)
(!) (Recommended Pair) 6JT6A RCA NOS (75ma and 78.5ma)
(!!) (Recommended Pair) 6JT6A Sylvania tipped NOS 1960's same build (72ma and 72.2ma)
6JT6A Sylvania tipped top NOS (70ma)
6JT8=6KR8 Sylvania NOS (2.2/24ma)
(!) (PAIR) 6JT8 GE NOS, 1 tube branded Westinghouse NOS (1.3/27ma and 1.2/27.5ma)
(!) (Best Single) 6JT8 GE NOS (2.1/27ma)
6JT8 Sylvania big bottle NOS 1960's (3.1/18ma)
6JT8 Sylvania big bottle NOS 1970 era (2.4/23ma)
6JT8 Sylvania big bottle NOS 1970's (1.6/28ma)
6JT8 Zenith Sylvania big bottle NOS 1960's (2.1/35ma)
6JU6 RCA NOS (1 in stock)
6K11=6Q11 GE branded RCA NOS 1960's (88/60, 92/60, 90/60)
6K11=6Q11 GE branded RCA NOS 1969 (88/60, 92/60, 90/60)
6K11=6Q11 GE branded RCA NOS 1960's (93/60, 97/60, 92/60)
6K11=6Q11 US Brands NOS 1960's (8 in stock)
6K6GT Cunningham used/good 1946 (33.5ma)
6K6GT GE coatd glass used/good 1949 (44ma)
6K6GT Ken Rad used/good 1951 hairline crack in base (34ma)
6K6GT RCA used/good 1954 small hairline crack in base (35ma)
(!!) 6K6GT RCA branded CBS NOS 1960 some glass chips resting at bottom of tube (46ma)
(!!!!) (PAIR) 6K6GT RCA black plate 1973 (44.5ma and 49ma)
6K6GT GE NOS 1959 (41.5ma)
(!!!) (BEST PAIR) 6K6GT Sylvania coated glass NOS 1940's (1) branded Philco (44ma and 44.6ma)
6K6GT Sylvania chrome top black plate lightning logo NOS 1954 (54.6ma)
6K6GT Sylvania black plate chrome top NOS 1956 (41.2ma)
6K6GT Silvertone by Silvertone used/good 1956 hairline crack in base (38ma)
6K7G Sylvania used/good 1940's (9.0ma)
6K7G Tungsol used/good 1930's (8.8ma)
6K7G=VT-86A Sylvania NOS 1944 (7 in stock)
(Best Single) 6K7GT RCA NOS 1959 (10.6mA, Gm=1600)
6K7GT=VT-86B Sylvania JAN used/good 1940's (4 in stock)
6K7GT=VT-86B Sylvania used/tests like new 1944-1945 (10ma Gm=1800)
6K8 metal can NOS (17 in stock)
6K8G National Union NOS 1950 (48/25 and 58/30)
6K8G RCA NOS 1940's (1 in stock)
6K8GT Philco NOS 1940's (46/25 and 62/30)
6K8GT Ken Rad NOS 1947 (50/25 and 49/30)
6KD6 GE branded RCA NOS 1977 (77ma)
(!!) (Good Value Pair) 6KD6 GE branded Westinghouse NOS 1982 (62ma and 65ma)
6KD6 GE branded NOS 1960's (79ma)
6KD6 Sylvania NOS (102ma)
6KD6 Sylvania NOS (112ma) (Yaesu)
(Recommended Pair) 6KG6A=EL509=EL519 Sylvania made by EI-Yugoslavia NOS (143ma and 149ma)
(!!!) (~ Recommended Pair ~) 6KG6A RCA JAPAN NOS original boxes 1970's (106ma and 110ma)
(!!!) (~ Recommended Pair ~) 6KG6A RCA JAPAN NOS original boxes 1970's (111ma and 114ma)
(!!!) (Recommended Single) 6KG6A RCA JAPAN NOS original boxes 1970's (142ma)
(!!!) (Recommended Single) 6KG6A Westinghouse JAPAN NOS 1973 (116ma)
(!!!) (Recommended Pair) 6KG6A Westinghouse JAPAN NOS original boxes 1973 (140ma and 144.5ma)
(!!!) (Recommended Pair) 6KG6A Westinghouse JAPAN NOS original boxes 1973 (109ma and 110ma)
(!!!) (Recommended Pair) 6KG6A Westinghouse JAPAN NOS original boxes 1973 (98ma and 99ma)
(!!) 6KM6 GE NOS (138ma)
(!!) 6KM6 RCA black plate NOS (5 in stock)
(!!) 6KM6 Sylvania NOS (126ma)
(!!) (Best Pair) 6KM6 Sylvania NOS (148ma and 147ma)
6KM8 RCA NOS (8 in stock)
6KN6 GE NOS 1974 (123ma)
6KT6 US Brands NOS (20 in stock)
6KT8 US Brands NOS (20 in stock)
(Best Single) 6KT8 US Brands NOS (7/16) (highest testing single)
6KV6A GE NOS (38.5ma)
6KZ8 US Brands NOS (9 in stock)
6L5G GE NOS 1953 (70/38)
6L5G GE NOS 1950 (67/38)
6L5G Ken Rad NOS 1940's (76/38)
6L5G Philco by Sylvania NOS 1940's (62/38)
6L5G Raytheon NOS 1955 (64/38)
6L5G RCA NOS 1951 (64/38)
6L6 RCA metal can NOS 1940's (66ma)
6L6 RCA metal can used/like new 1953 (71ma)
6L6 RCA metal can used/very good 1945 era (72.5ma)
(!!!) (Best Pair) 6L6G MULLARD UK NOS 1959 (67.2ma and 68.6ma)
6L6GB GE Black Plate used/good 1957 (59ma)
6L6GC GE NOS 1964 broken center guide pin (61ma)
6L6GC GE tests like new 1964 broken center guide pin (87.5ma)
6L6GC GE Zenith low hours/like new 1960's in white box (61.5ma)
(!!!!!) (BEST VALUE PAIR) 6L6GC RCA Black Plate used/good 1970-1975 (66.5ma and 67.5ma) (Gm like new)
(!!!) (Best Single) 6L6GC RCA Black Plate used/tests like new 1964 (88ma)
(!!!!) (Recommended Single) 6L6GC RCA black plates branded Westinghouse like new double "D" getters 1960 era (72ma)
(!!!) (Best Value Black Plate single) 6L6GC RCA Conn black plate used/good 1962 (67ma) (Gm like new)
6L6GC Tungsol used/good around 1960 - broken center guide pin (73ma)
(!!!!) (Good Value Pair) 6L6WGB=5881 Sylvania and Philips JAN black base 1979-1986 (72ma and 73.4ma)
(!!!!) (Recommended Pair) 6L6WGB=5881 Sylvania NOS same build 1980 era (81ma and 84ma) (same Gm)
(!!!!) (Best Value Pair) 6L6WGB=5881 Sylvania NOS and like new same build 1970's (74ma and 75ma)
(!) 6L6Y RCA metal can (Y=brown bottom) NOS 1964 (72ma)
(!) 6L6Y RCA metal can (Y=brown bottom) NOS 1966 (77ma)
(!) 6L6Y RCA metal can (Y=brown bottom) NOS 1955 (78.8ma)
6L7 RCA metal can used/like new 1940's (39/16)
6L7 RCA metal can used/like new 1940's (40/16)
6L7 RCA metal can NOS small amount of rust on metal can 1940's (33/16)
6L7=VT-87 RCA used/good 1940's some paint flaked off metal can (36/16)
6L7G Sylvania NOS (2 in stock)
6L7G Sylvania used/tests like new 1940's (38/16)
6LB6 GE branded Amperex NOS 1967 (65ma)
6LB6 GE branded Quasar NOS 1970 era (78ma)
6LB6 RCA used/good 1970 era (84ma)
6LB6 GE branded Zenith used/good (89ma)
6LF6 GE Zenith NOS 1978 (155ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
(!!) (Recommended Pair) 6LF6 JAPAN Big Bottle Euro style construction NOS 1970's (92ma and 87ma)
6LF6 RCA JAPAN branded Gt. Britain Big Bottle Euro style construction NOS 1973 (141ma)
6LF6 RCA JAPAN branded Gt. Britain Big Bottle Euro style construction low hours/like new 1976 (104ma)
6LF6 RCA JAPAN branded Gt. Britain Big Bottle Euro style construction NOS 1973 (92ma)
(!) (Recommended Pair) 6LF6 Sylvania NOS same build (115ma and 121ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LF6 Westinghouse JAPAN branded Gt. Britain Big Bottle Euro style construction NOS 1974 (87ma)
6LF6 Zenith NOS 1978 (101ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)
6LJ6 and 6LJ6A NOS (20 in stock)
(!!) (Good Value Pair) 6LQ6=6JE6C GE NOS 1970 (57ma and 62ma)
(!!) (Best Single) 6LQ6=6JE6C Raytheon Japan NOS 1970's (122ma)
6LQ6=6JE6C RCA black plate used/good 1968 (89ma)
6LQ6=6JE6C RCA black plate used/good 1969 (99ma)
6LQ6=6JE6C RCA gray plate used/good 1970 (93ma)
6LQ6=6JE6C Sylvania used/good 1960's (108ma)
6LQ6=6JE6C Sylvania used/tests like new 1970's (123ma)
6JE6C=6LQ6 Dumont Sylvania used/like new 1960's (104ma)
(!!!!) (Recommended Pair) 6LQ6=6JE6C Sylvania NOS 1970 era (76ma and 77ma)
(BEST VALUE) 6LQ6 Sylvania branded RCA low hours/like new 1970 era (104ma)
(!!!) (BEST OVERALL PAIR) 6LR6 GE NOS 1970 era (100ma and 102ma)
6LR8 NOS (1 in stock)
6LU8 GE NOS faded printing (3.4/61ma)
6LU8 GE used/good no printing (2.1/49ma)
(!) Best Single) 6LU8 GE Admiral NOS 1960's (2.5/61ma)
(!) (Best Single) 6LU8 GE Admiral NOS 1971 (3.4/64.5ma)
6LU8 Zenith GE tests like new faded printing (2.4/51ma)
6LU8 GE NOS 1979 (2.3/51ma)
6LU8 International Servicemaster Korea NOS (4.6/50ma)
6LU8 Sylvania used/good 1969 (1.7/61ma)
6LX6=6LF6 GE branded Westinghouse NOS (82ma)
6LX6=6LF6 Sylvania Philips NOS (91ma)
6M11 US Brands (1 in stock)
(!!) (Recommended Pair) 6ME6 GE NOS (70ma and 73ma)
6ME8 US Brands NOS (15 in stock)
6MF8 Sylvania NOS (6 in stock)
(!) 6MJ6 GE branded RCA NOS 1980 era (78ma)
6MJ8 Sylvania NOS (4 in stock)
6ML8 US Brands NOS (8 in stock)
6MQ8 US Brands NOS (8 in stock)
(!!!!) (Best Pair) 6N7 GE metal can NOS 1954-1955 (3.3/3.1ma and 3.1/3.1ma) 1-2% matched
6N7 RCA NOS 1973 (2.3/2.3ma)
6N7=VT-96 RCA used/test like new mid-1940's (3.5/3.8ma)
6N7 RCA metal can used/good (6 in stock)
6N7=VT-96 RCA used/test like new mid-1940's (3.1/3.2ma) 1-2% section balance
6N7 Westinghouse Canada NOS 1950's (2.6/3.0ma)
(!) (Recommended Single) 6N7GT Raytheon coated glass NOS 1940's (3.2/3.5ma)
6N7GT RCA branded Sylvania NOS 1950's (2.5/2.6ma)
6N7GT RCA NOS 1940's (2.5/3.1ma)
6N7GT RCA used/good 1940's (2.4/2.3ma)
6P-90 Amperite Time Delay Relay (5 in stock)
6P5G RCA NOS 1940's (5.7ma Gm=1400)
6P5G Sylvania NOS 1940's (4.8ma Gm=1300)
6P5GT RCA NOS 1947-1948 (5.0ma Gm=1400)
6P5GT Sylvania NOS 1947 in white box (5.3ma Gm=1400)
6P5GT Sylvania NOS 1947 (5.0ma Gm=1400)
6P5GT Tungsol NOS 1947 (5.6ma Gm=1450)
6P5GT Westinghouse NOS 1960 era (62/36)
6P7G Sylvania NOS (3 in stock)
6Q5G Dumont NOS (3 in stock)
6Q7 GE metal can NOS 1958 (36/20)
6Q7 Tungsol metal can NOS 1950's (35/20)
6Q7G Ken Rad used good 1940's (27/20)
6Q7G Sylvania used good 1940's (32/20)
6Q7G Tungsol used strong 1940's (38/20)
6Q7GT Philco used/good 1947 (32/20)
6Q7GT Zenith by Sylvania NOS 1946 (39/20)
6Q7GT Zenith NOS 1950's (34/20)
6Q7GT Zenith NOS 1950's (31/20)
6R7 Hytron metal NOS 1951 (115/60)
6R7 metal NOS (5 in stock)
6R7GT Ken Rad NOS 1944 (108/48)
6R7GT Ken Rad NOS 1944 (100/48)
6R8 Raytheon NOS 1950-1951 (4 in stock)
6S4A GE Admiral NOS 1965 (27.5ma)
6S4A GE Canada NOS 1965 (27ma)
6S4A Raytheon NOS 1961 (20ma)
6S4A RCA branded Sylvania black plate NOS 1960 era (20.6ma)
6S4A RCA USA black plate NOS 1970's (19ma)
(!!) (Recommended PAIR) 6S4A RCA USA black plate NOS 1960's - 1970's (25.5ma and 28.5ma) (Highest mA and Gm)
6S4A Sylvania NOS 1960's (20ma)
6S4A Sylvania triple mica NOS 1960's (20.2ma)
6S4A Tungsol branded GE NOS 1966 (21.5ma)
6S4A Westinghouse NOS 1963 (23ma)
(!!) (Recommended Pair) 6S4A Westinghouse black plate NOS -1963 era (20ma and 21.2ma)
6S7 US Brands metal can NOS (5 in stock)
6S7G Coronado NOS 1940's (2 in stock)
6S7G Raytheon NOS 1940's
6S7G Zenith by Sylvania tests like new 1930's (96/60)
(!!) 6S8GT GE NOS (4 in stock)
6S8GT Tungsol tests like new scratches on base 1952 (102/60)
6S8GT used/good no printing 1950 era (102/60)
6SA7 Ken Rad NOS 1940's (1 in stock)
6SA7GT Delco NOS 1940's (94/50)
6SA7GT Delco NOS 1940's (101/60)
6SA7GT GE NOS 1943 (96/60)
6SA7GT RCA NOS 1940's (95/60)
6SA7GT RCA NOS 1950's (95/60)
6SA7GT Sylvania NOS 1940's (98/60)
6SA7GT Sylvania NOS 1940's (97/60)
6SB7Y GE NOS 1962 (3 in stock)
6SB7Y Sylvania NOS 1960's (1 in stock)
(!!!) (Recommended Pair) 6SC7 GE metal can NOS 1977 (1.7/1.7ma and 1.7/1.8ma) 1-2% matched
(!!!) (Recommended Pair) 6SC7 GE NOS 1977 (1.7/2.1ma and 1.8/2.1ma) 1-3% matched
(!!!) (Recommended Pair) 6SC7 GE metal can NOS 1969-1977 (1.7/1.9ma and 1.6/1.8ma) (same Gm)
6SC7=VT-105 RCA used/good 1940's (1.4/1.5ma)
6SC7 RCA NOS 1959 (2.3/2.0ma)
6SC7=VT-105 Ken Rad used/good 1946 (1.8/1.9ma)
6SC7=VT-105 RCA used/good 1940's (1.6/1.7ma)
(!!!!!) (Best Overall Single) 6SC7GTY Tungsol NOS black round plates NOS 1950 era - small chip out of base (2.1ma and 2.2ma)
6SD7GT Continental by National Union NOS 1950 era (11.6ma)
6SD7GT Ken Rad NOS 1940's (11ma)
6SD7GT Ken Rad NOS 1940's (12.6ma)
6SD7GT Raytheon NOS 1940's (11ma)
6SD7GT Raytheon NOS 1951 (11ma)
6SD7GT Raytheon NOS 1956 (9.6ma)
6SD7GT Sylvania NOS 1940's (11ma)
6SF5 GE used/good 1951 (1.1ma Gm=1200)
(Best Single) 6SF5 GE NOS 1958 (2.1ma) (strong single)
(!!) (Pair) 6SF5 RCA metal can NOS 1948-1957 (1.2ma and 1.0ma)
6SF5 Sylvania NOS 1960's (1.1ma Gm=1500)
6SF5 Sylvania used/good 1949 (0.8ma Gm=1100)
6SF5 Sylvania used/good 1950's (0.8ma Gm=1400)
6SF5GT Sylvania Philco NOS 1940's (1.1ma Gm=1100)
(!!!) (BEST OVERALL PAIR) 6SF5GT Tungsol NOS 1946 (1.1ma and 1.3ma)
(BEST SINGLE) 6SF5GT Tungsol NOS 1940's (1.1ma Gm=1500)
6SF5GT Tungsol NOS 1949 (0.7ma Gm=1350)
6SF7 Raytheon NOS 1955 (13.4ma)
(!) (Best RCA Pair) 6SG7 RCA metal can NOS 1961 (11.6/12.4ma)
(BEST PRICE) 6SG7 RCA metal can NOS (4 for $19.99)
6SG7 RCA metal can NOS 1960-1961 (4 in stock)
6SG7 US Brands metal can NOS (9 in stock)
6SG7GT US Brand branded International NOS (3 in stock)
6SG7Y RCA NOS 1960 (6 in stock)
(!!) 6SH7 GE metal can NOS 1942-1945 (11.6ma)
(!!) 6SH7 GE metal can NOS 1942-1945 (12.5ma)
(!!) (Recommended Pair) 6SH7 GE metal can NOS 1958 and 1970 (10.3ma and 11ma)
(!!) (Best Pair) 6SH7 GE metal can NOS 1970-1981 (11ma and 11.2ma)
6SH7 Rauland by RCA metal can NOS 1955 (11ma)
6SH7 RCA metal can NOS 1955 (10.2ma)
6SH7 RCA metal can NOS (10.3ma)
6SH7 metal used (4 in stock)
(!!) (1 Pair) 6SH7GT Ken Rad 1950's rebranded Raytheon NOS 1970 (8.8ma and 9.4ma) (same Gm)
6SH7GT Raytheon NOS 1940's (9.5ma)
6SJ7 and 6SJ7Y US Brands used/good (40 in stock)
(!!) (Pair) 6SJ7 GE metal can NOS 1977 (2.5ma and 2.7ma)
6SJ7 GE used/like new 1966 (3.3ma)
6SJ7 RCA metal can like new 1964 (3.5ma)
6SJ7 RCA metal can like new 1964 (3.8ma)
6SJ7 GE NOS 1961 (3.1ma)
(BEST PRICE) 6SJ7 US Brands used/good (4 tubes for $14.99)
(!!!) (Best Pair) 6SK7 GE NOS 1969 (9.0ma and 8.8ma)
6SK7 Ken Rad NOS 1950 (9.2ma)
(!!) (Recommended Pair) 6SK7 Sylvania NOS 1950 era (9.2ma and 9.0ma)
(!) 6SK7GT Philco by Sylvania chrome top 1952 (10ma)
6SK7GT Raytheon used/good/70% 1940's (6.6ma)
6SK7GT Sylvania used/good 1940's (7.3ma)
6SK7GT Zenith by Sylvania used/strong 1940's (9ma)
(!) 6SK7GT GM Delco NOS 1940's (8.8ma)
(!!!) (Good Value Pair) 6SL7GT GE NOS round chrome plates 1969 (1.8/1.9ma and 1.9/2.0ma) (same Gm)
(!) (slightly microphonic) JAN-CRC-6SL7GT RCA NOS black plates 1951 tilted glass (2.0/2.2ma)
(!) 6SL7GT RCA burgundy base NOS 1951 (1.7/1.8ma)
(!!!) (Recommended Single) 6SL7GT RCA NOS 1962 (2.5/2.7ma)
(!!) (Best Value) VT-229=JAN-CHS-6SL7GT Sylvania NOS white printing 1944-1945, hairline crack in base, mis-matched sections in white box (2.6/3.4ma)
(!!) 6SL7GT Sylvania NOS 1960's (2.6/2.2ma) (Eddie Current)
(!!) 6SL7GT Sylvania NOS branded Zenith 1950's tall bottle (3.0/2.9ma)
(!!!!) (Recommended Pair) 6SL7GT Sylvania short bottle chrome top NOS 1953-1954 (2.5/2.4ma and 2.5/2.7ma)
(!!) 6SL7GT Sylvania NOS tall bottle 1955 (2.0/2.2ma)
(!!!) (Good Value Pair) 6SL7GT Sylvania gray round plates chrome top used/good 1949-1954 (2.3/1.9ma and 2.4/2.1ma)
(!!!) (PAIR) 6SL7GT Sylvania round gray plates NOS 1952 (2.1/2.4ma and 2.3/2.5ma) (same Gm)
(!!) 6SL7GT Sylvania NOS branded Westinghouse tall bottle 1955 (2.8/2.7ma)
(!) (slightly microphonic) 6SL7GT=VT-229 RCA round black plates like new 1942-1945 era (2.4/2.6ma)
(!!!) 6SL7WGT Sylvania branded Raytheon 5691 brown base round black plates "D" getter halo used/good 1950's (1.6/1.8ma)
(!!!) 6SL7WGT Sylvania brown base round black plates like new 1955 no printing (2.6/2.8ma)
(slightly microphonic) 6SN7GT Hytron NOS 1948 (7/8ma)
(!!) 6SN7GT Raytheon taller bottle parallel black plates NOS 1949 (8.2/8.0ma)
(!!!) 6SN7GT Raytheon parallel plates NOS 1953 (8.5/10ma)
(!!!) (Best Value Pair) 6SN7GT RCA NOS and used/very good 1953-1954 same build (7.0/8.5ma and 6.6/7.6ma)
(!!!) (Best Value) 6SN7GT Sylvania used/good 1951 (7.8/12ma)
(!) (SINGLE) 6SN7GT Westinghouse USA black plates NOS 1950 era (6.4/6.8ma)
6SN7GTA CBS NOS Black Ribbed Plates similar to RCA early 1950's (8.3/8.6ma)
(!!!!) (Best Single) 6SN7GTA GE NOS "U" getter halo - side getter - copper grid posts 1952 (9.3/11ma)
(!!!!) (Good Value Pair) 6SN7GTA GE NOS "U" getter halo - side getter - copper grid posts 1953 (6.0/7.2ma and 6.0/7.2ma) 1-2% matched
(!!!!) (Best Value Pair) 6SN7GTA GE "U" getter halo - side getter - copper grid posts NOS 1953-1954 (6.6/6.0ma and 6.0/6.8ma)
(!!!!) (Best Pair) 6SN7GTA GE "U" getter halo - side getter - copper grid posts NOS 1951-1952 (10.4/12.2ma and 10.6/10.8ma)
(!!) 6SN7GTA Sylvania "chrome top" tall bottle used/good 1950 era (6ma/6ma) 1-2% section balance
(!!) (Best CBS Single) 6SN7GTB CBS black plates side-getter NOS, the same shape as Sylvania 6SN7GTB 1959 (8.0/8.2ma)
(!) (Good Value) 6SN7GTB CBS black base black plates side-getter NOS, the same shape as Sylvania 6SN7GTB 1960 (6.8/7.2ma)
6SN7GTB CBS black base black plates side-getter, the same shape as Sylvania 6SN7GTB used/good 1961 (7.5/8.0ma)
(!!) (Single) 6SN7GTB GE branded Raytheon NOS 1970's (10/9.6ma)
(!!!!) (Recommended GE Pair) 6SN7GTB GE NOS 1963-1968 (9.7/9.8ma and 9.0/8.6ma) (close Gm) (Schiit Freya, Rogue)
(!!!!) (Best Value Pair) 6SN7GTB GE NOS 1973-1976 (6.5/7.6ma and 6.5/6.8ma) (Schiit Freya, Rogue)
(!!) 6SN7GTB Raytheon black plates NOS 1960's (7.8/8.2ma)
(!!) (Recommended) 6SN7GTB Raytheon gray plates NOS 1960's in white box (9/10ma)
(!!) (Best Value Single) 6SN7GTB RCA used/good 1950's (7.0/7.6ma) (Gm the same)
(!!) (Best Value Single) 6SN7GTB RCA branded Bendix Television low hours/like new 1955 side getter (7.2/7.4ma) (Gm like new)
(!!) 6SN7GTA RCA branded CAPEHART used/like new 1955 (8.4/9.8ma)
(!!) 6SN7GTB RCA branded Superior NOS 1960's (7.2/8ma)
(!!!) (BEST VALUE PAIR) 6SN7GTB RCA coin-base 1970-1975 (10.4/9.6ma and 9.4/10.6ma)
(!!!) (BEST SINGLE) 6SN7GTB RCA coin-base 1973-1974 (9.8/9.8ma) 1-2% section balance
(!!) (Best Value) 6SN7GTB RCA NOS 1959 side getter (6/8ma)
(!!!!!) (Best Value Pair) 6SN7GTB RCA NOS and like new 1965 (8.2/10.2ma and 8.2/9.2ma) (same Gm) (warm and smooth)
(!!!!) (Best Value Pair) 6SN7GTB RCA coin-base NOS 1970-1975 (8.8/9ma and 9.3/8.3ma)
6SN7GTB RCA used good 1960's (6.4/8.2ma)
(!!) 6SN7GTB Realistic JAPAN NOS tall gray ribbed plates 1960's (8/8.2ma)
(!!!) (Best Value Pair) 6SN7GTB RCA coin-base black plates 1970-1975 (8/10ma and 9.8/8ma)
(!!!) (Recommended Single) 6SN7GTB Sylvania NOS 1960's (7.2ma and 6.6ma)
(!!!!) (Good Value Pair) 6SN7GTB Sylvania chrome top like new 1950's (8.0/9.1ma and 8.0/9.2ma) (Schiit Freya, Rogue, Modwright OPPO)
(!!) 6SN7GTB Sylvania used/75% 1960's (6.0/6.4ma)
(!!!) (Good Value Single) 6SN7GTB Tungsol tall bottle used/good 1960 era (7.5/7.5ma) 1% section balance
(!!!) 6SN7GTB Westinghouse black plates copper grid posts "D" getter 1950's (7.2/8.4ma)
(!!) (SINGLE) 6SN7GTB Westinghouse Rad-Tel Tube Co. gray plates "O" getter halo NOS 1964 (8.4/7.4ma)
(!) (Good Single) 6SN7GTB Westinghouse USA gray plates "O" getter halo NOS 1961 (8.0/9.4ma)
(!!!!) (Good Value Single) 6SN7GTB Westinghouse USA black plates "D" getter halo like new 1960 (6.8/7ma)
(!!!!) (Best Westinghouse Single) 6SN7GTB Westinghouse USA black plates NOS 1963 (8.2/8.0ma)
6SQ7 RCA NOS 1950-1953 (0.8ma) (special price)
(!) (BEST SINGLE) 6SQ7 RCA NOS 1950 (1.3ma and Gm=1600)
6SQ7 RCA NOS 1953 (0.9ma Gm=1400) (High Gm)
(!!!!) (5th BEST PAIR) 6SQ7 RCA NOS 1950-1953 (0.9ma and 0.9ma) **
(!) 6SQ7 Sylvania NOS 1951 (0.9ma and Gm=1000)
6SQ7 metal used/good (3 in stock)
(BEST SINGLE) 6SQ7GT RCA NOS 1951 - 1 small stress crack in metal base (1.1ma and Gm=1300)
6SR7 US Brands metal can NOS (15 in stock)
(!!) (BEST PRICE) 6SR7 US Brands metal can NOS (4 tubes for $14.99)
6SS7 Tungsol NOS 1955 (100/60)
6ST7 RCA NOS
6SV7 Raytheon NOS
6T8 Sylvania NOS 1950's (8 in stock)
6T8A GE Canada NOS 1960's (6 in stock)
6T8A Lafayette Japan NOS (6 in stock)
6T8A RCA NOS (4 in stock)
6T8A Sylvania branded Westinghouse NOS 1967 (1 in stock)
6T8A Tungsol NOS 1960's (2 in stock)
6T9 GE NOS 1960's
6T9 GE branded RCA NOS original boxes (2 in stock)
6U10 Sylvania NOS in white box (
6U4GT US Brands NOS (3 in stock)
6U5 RCA like new 1970 (bright green eye)
(!!) (BEST SINGLES) JAN-CRC-6U5 RCA NOS Tuning Eye 1952 bright eyes (3 in stock)
6U5 Sylvania 1940's used/good medium brightness
6U5 Tungsol Tuning Eye NOS 1949 (bright eye)
6U6GT US Brands NOS (25 in stock)
6U7G GM Genuine Parts engraved base used/good 1940's reboxed (65/40)
(!!) 6U8=ECF82 Tungsram Hungary rebranded Haltron NOS 1970's (14.3ma and 7.6ma)
6U8A=6678 Dumont NOS 1971 (19.7/7ma)
(!!!!) (Recommended Pair) 6U8A GE NOS 1963-1966 (15/14ma and 9.6/9.0ma)
(!!) (Recommended Single) 6U8A GE Amperex NOS 1974 (13.5ma/10.2ma)
(!!!!) (Recommended Pair) 6U8A GE NOS 1973-1976 (19/18.8ma and 10/9.8ma)
(!) (Recommended SINGLE) 6U8A Sylvania NOS 1960's (19.8ma/10.6ma)
(!) (BEST SINGLE) 6U8A Sylvania NOS 1970 era (20ma/17ma)
(!!) 6U8A Westinghouse NOS 1967 (24ma and 7.5ma)
(!!!) 6uf/1000VDC CDE US made oil cap NOS 1988 (power supply or crossover cap) (27 in stock)
6V3A NOS
(!) 6V6 GE metal can NOS 1976 (33ma)
(!!) (1 PAIR) 6V6 GE metal can NOS 1976 (34.2ma and 35.0ma)
(!!!) (Recommended Quad) 6V6 GE metal can NOS 1976 (36.4, 36.5, 36.5, 36.6mA)
(!) 6V6 GE metal can used/good 1950 (36ma)
(!) 6V6 RCA Airline metal used/tests like new 1948 (42ma)
(!) 6V6 RCA metal can NOS 1958 (40ma)
(!!!) (Recommended Pair) 6V6 Sylvania metal can NOS 1970 era (39.2ma and 39.3ma)
(!!!!) 6V6G Mullard branded Haltron England NOS gray coated glass 1940's (45.5ma)
(!!) 6V6G RCA NOS rebranded Haltron England 1940's (37.5ma)
(!!!) 6V6G RCA used/good 1940's (33.5ma)
(!!!) 6V6G RCA used/good 1940's (38.4ma)
(!!!) 6V6G RCA used/good 1940's (42ma)
(!!!!) (Recommended Single) 6V6G Sylvania branded Haltron coated glass NOS 1940's (50ma)
(!!) (Recommended Single) 6V6GT GE coated glass NOS 1954 (48ma)
6V6GT GE coin-base NOS 1985 (40.6ma)
6V6GT GE Delco used/good crack in base 1952 (36ma)
(!!!) (Recommended Pair) 6V6GT GE NOS 1963 (43ma and 45.5ma)
6V6GT Hytron black plate like new smeared printing 1947 (44ma)
(!!) 6V6GT Metro Holland NOS 1960's unknown maker (49ma)
(!!) 6V6GT Philco by Sylvania tests like new 1957 (42.2ma)
(!!) (Recommended SIngle) 6V6GT Raytheon Silvertone black coated glass NOS 1940's (50.5ma)
(!!!) (Best Pair) 6V6GT Raytheon black plate coated glass NOS 1951 (41.5ma and 45ma)
(!!!!!) (Best Single 1951) 6V6GT RCA black plate burgundy base like new 1951 (43.5ma) (Fender, Swart, Clark, Victoria, Ampeg, Silvertone amps)
(!!!!) (Recommended Pair) 6V6GT RCA black plate coated glass like new 1940's and NOS 1954 (49ma and 46ma)
6V6GT RCA branded Raytheon used/good 1962 (32.4ma)
(!!!!) (Single) 6V6GT RCA used/tests like new 1960 (39ma)
(!) 6V6GT Sylvania used/good 1946 (38ma)
(!!) 6V6GT Sylvania chrome top NOS 1956 (41.6ma)
(!!!) 6V6GT Sylvania green leaf NOS 1940's (60ma)
(!!!!) (Recommended Pair) 6V6GT Sylvania NOS 1940's (46.5ma and 47.8ma)
(!!) (Recommended Pair) JAN-6V6GT Sylvania NOS 1976-1979 (41ma and 38ma)
(!!!!) (Single) 6V6GT Sylvania coated glass NOS 1956 (34.2ma)
6V6GT Tungsol black plate used/good 1950's (38ma)
(!!!) 6V6GT Tungsol black plate coated glass used/good 1940's hairline crack in base (44ma)
(!!) 6V6GT=VT-107A National Union coated glass NOS 1945 (37ma)
(!!) 6V6GT GE NOS 1963 (39.6ma)
(!!!!) (Recommended Pair) 6V6GTA GE NOS 1960's - 1970 (38ma and 40ma) (Fender, Two Rock, Victoria)
(!!) (Recommended Pair) 6V6GTA GE NOS 1970's (39ma and 40.7ma)
(!!!!) (Best 6V6GTA Single) 6V6GTA RCA NOS 1971 (45.6ma)
(!!!!) (Good Value Pair) 6V6GTA RCA used/good 1962 and 1970's (30ma and 31.5ma)
(!!!) (Recommended Pair) 6V6GTA Sylvania NOS 1960's (37.5ma and 39.5ma)
(!) 6V6GTY GE Canada brown base black plate NOS 1970 (42.5ma) (similar to RCA black plate)
(!!!) (Recommended Pair) 6V6GTY GE brown base NOS 1964-1965 (44ma and 43ma)
6V7G Sylvania branded GM GENUINE PARTS engraved base tests like new
6W4GT RCA NOS (12 in stock)
(!!) (BEST PRICE!) 6W4GT Tungsol NOS (10 tubes for $27.99)
6W6GT Philco used good 1954 (50ma)
(!) (BEST PAIR) 6W6GT RCA NOS 1965 (41.5ma and 44.5ma) (same Gm)
6W6GT used/test good
6X4 Arcturus by GE NOS "D" getter 1960 (54/40 and 54/40)
6X4 GE Beckman like new "D" getter 1962 (54/40 and 52/40)
6X4 GE Hewlett Packard NOS "D" getter halo 1962 (55/40 and 56/40)
6X4 GE like new 1950's "D" getter (54/40 and 54/40)
6X4W GE used/tests like new 1960 era "D" getter (52/40 and 52/40)
6X4W GE 1960 "D" getter branded 6X4 Amperex Globe 1971 used/good (50/40 and 50/40)
(!!!!) (BEST PRICE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (54/40 and 55/40)
(!) 6X4 Philco by Sylvania NOS 1961 (51/40 and 52/40)
6X4 RCA "O" getter low hours/like new 1960's (49/40 and 52/40)
(!!!!) (Recommended Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched (54-55/40 and 54-55/40 x 2 tubes)
(!!!) (BEST VALUE SINGLE) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's slightly tilted glass (54/40 and 54/40)
(!!!) (Set of 77) 6X4 US Brands NOS original boxes 1950-1980 era (set fo 77)
(!!) (BEST SYLVANIA PAIR) 6X4 Sylvania Philco NOS 1959 "D" getter (52-54/40 and 53-54/40)
(!!!) (Recommended Single) 6X4W Tungsol NOS 1966 (50/40 and 50/40)
6X4WA GE black plates rebranded National NOS (55/40 and 56/40)
6X4WA GE used/tests like new 1960 era no printing (54/40 and 54/40)
(!) JAN-6X4WA Sylvania used/good 1967 (48/40 and 50/40)
(!!!) (Best Value) JAN-6X4WA Sylvania NOS 1972-1979 (1 in stock)
6X5GT GE Amperex NOS 1972 slightly tilted glass (50/40 and 50/40)
(!!!) (BEST VALUE PAIR) 6X5GT GE coin-base NOS 1970's (50-50/40 and 51-52/40)
(!!!) (BEST VALUE SINGLE) 6X5GT GE coin-base NOS 1970's (47/40 and 52/40)
(!!!) (Recommended Pair) 6X5GT GE NOS 1961-1963 (50-50/40 and 49-49/40 x 2 tubes)
6X5GT GE used/good 1958 (48/40 and 50/40)
6X5GT GE used/good 1960 (47/40 and 48/40)
6X5GT GE used/good 1951 (49/40 and 50/40)
6X5GT GE used/good 1963 (48/40 and 49/40)
6X5GT Ken Rad 1940's used/good (51/40 and 53/40) (RCA construction)
(!) (BEST VALUE) 6X5GT National Union NOS 1950 era (8 in stock)
6X5GT Philco by Sylvania used/good 1940's tilted top mica (54/40 and 60/40)
(Best Price) 6X5GT=VT-126B RCA black plates NOS 1943-1945 era (10 in stock)
(!!!) 6X5GT RCA black plates NOS 1953 (50/40 and 54/40)
(!!!) 6X5GT RCA NOS 1953 (52/40 and 62/40)
(!!!) 6X5GT RCA NOS 1969 (47/40 and 56/40)
6X5GT RCA NOS 1955 (50/40 and 60/40)
6X5GT RCA branded Raytheon NOS 1950's (51/40 and 52/40)
6X5GT Sylvania chrome top NOS 1958 (51/40 and 52/40)
6X5GT Sylvania chrome top used/good 1956 (47/40 and 50/40)
(!!!) (Recommended Single) 6X5GT Sylvania Silvertone NOS 1945 (52/40 and 53/40)
6X5GT Tungsol no printing used/good 1940's (55/40 and 68/40)
6X5GT US Brands used/good (10 in stock)
6X5GT US Brands used/good (2 for $12)
(!!!) (Best Pair 1943) 6X5GT=VT-126B RCA black plates NOS 1943 (51-53/40 and 51-54/40)
(!!!) (Good Value Pair) 6X5GT=VT-126B RCA black plates NOS 1943 (50-50/40 and 50-50/40)
6X8 and 6X8A US Brands NOS (40 in stock)
6Y10 US Brands NOS (2 in stock)
6Y6G GE 1943 used/good black plate, double filaments, crack in base (56ma) tested on amplitrex
(!!) (Single) JAN-CKR-6Y6G Ken Rad NOS 1944 (75ma)
6Y6G RCA clear glass gray plate NOS 1959 (52ma)
6Y6G Sylvania rebranded Raytheon coated glass used 1953 (45ma) tested on amplitrex
(!!) (Recommended Pair) 6Y6GA Sylvania NOS same build (56.6ma and 57ma)
(!!!) (Best Sylvania Pair) 6Y6GA Sylvania NOS "D" getters same build (64ma and 65ma)
6Y7G US Brands NOS (12 in stock) ($2.99 special price)
6Z10=6J10 US Brands (8 in stock)
6Z5 Majestic NOS
6Z7G US Brands NOS (5 in stock)
(!) (Best Single) 6ZY5G GE NOS 1951 (55/40 and 56/40)
(!) 6ZY5G Philco NOS 1940's (50/40 and 54/40)
6ZY5G Philco NOS 1940's (56/40 and 62/40)
6ZY5G RCA NOS 1945 (57/40 and 62/40)
6ZY5G Coronado/Gamble Stores licensed by RCA NOS (3 in stock)
7 CINCH pin black phenolic chassis mount NOS (25 in stock)
7 pin brown phenolic bottom chassis mount NOS branded "N" (10 for $29.99)
7 pin brown phenolic bottom chassis mount NOS branded "N" (25 in stock)
7 pin CINCH ceramic bottom chassis socket with center ground post NOS (3 in stock)
7 pin CINCH brown phenolic bottom chassis mount NOS (1 in stock)
7 pin CINCH brown phenolic top chassis mount NOS (1 in stock)
7-pin EF Johnson Number 122-101-200 Ceramic Chassis mount socket NOS for 4-65A, 826, 829B, 832 (8 in stock)
7-pin EF Johnson Number 122-227-200 Ceramic Chassis mount socket NOS 1940's - 1950's (8 in stock) (1625 power tube)
7 pin gray phenolic top chassis socket (27 in stock)
7 pin USA MADE brown phenolic bottom chassis mount NOS (8 in stock)
7 pin USA MADE green phenolic top chassis mount NOS (25 in stock) (Min. 2 purchased)
700/200/100uf @ 16VDC Mallory PFP cap NOS (1 in stock) (PFP300.87)
(!!!) (Single) 7025 Amperex Globe Logo Holland used/good 1967 (Gm=1300/1400 and mA=0.9/1.1ma)
(!!!) (Best Value) 7025 Silvertone Hitachi Japan ribbed gray plates low hours/tests like new 1960's (Gm=1700/1800 and 1.2/1.4mA) (V1 guitar amp)
(!!) (SINGLE) 7025 RCA gray NOS 1970 era (Gm=1450/1600 and 1.0/1.2mA)
(!!!) 7025 RCA ribbed gray plates used/good 1960's (Gm=1350/1600 and 0.6./1.1mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/good 1972 (Gm=1450/1400 and 0.9/0.8mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/tests like new 1960's faded printing (Gm=1500/1500 and 1.1/0.9mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/good 1960's faded printing (Gm=1400/1600 and 0.9/1.1mA) (V1 guitar amp)
(!!!) 7025 RCA ribbed gray plates used/good 1960's (Gm=1350/1450 and 0.7/0.8mA)
(!!!) 7025 RCA Beckman ribbed gray plates used/60% 1960's (Gm=1100/1300 and 0.5/0.7mA)
(!!)7025 Sylvania gray pinched plates "D" getter 1960 era used/good (Gm=2100/2100)
(!!!) (Best Value Pair) 7027A GE NOS 1980 era (75ma and 77.8ma)
(!!!) (Good Value Pair) 7027A GE NOS 1980 era (68ma and 70.5ma)
7027A RCA metal base gray plate NOS 1960 (74.2ma)
7027A Sylvania used/75% (58.5ma)
7044 GE rebranded 7119 Amperex PQ 1970's (30/36ma)
705 Cetron USA NOS (4 in stock)
7054=12BY7 RCA NOS (5 in stock)
7055 RCA NOS
7056 US Brands NOS (40 in stock)
7061 US Brands NOS (10 in stock) (Mobile-Rated 12AB5)
(slightly microphonic) 7062 Amperex Holland "PQ" NOS large "O" getter halo 1961 (8.6/9.0ma)
(slightly microphonic) 7062 Amperex Holland "PQ" NOS large "O" getter halo 1962 (6.8/7.0ma)
(!!) 7062=E180CC Amperex USA NOS 1980-1981 (5/6ma)
(BEST PRICE) 70L7GT US Brands NOS (4 for $14.99)
70L7GT US Brands NOS (5 in stock)
710L=7509A National USA NOS
(!!!) (Best Pair) 713A Western Electric by Tungsol NOS 1942-1943 (7.1ma and 7.0ma) (713A=717A with black base)
(!!!) (Recommended Pair) 713A Western Electric by Tungsol NOS 1942-1943 (6.6ma and 6.9ma) (713A = 717A with black base)
(!!) (PAIR) 713A Western Electric by Tungsol NOS 1942-1943 (6.2ma and 6.3ma)
715A Western Electric like new large getter 1940's
715C Raytheon NOS large getter 1940's
(!!!!) (Recommended Pair) 7189 CBS gray plate NOS 1960 (42.5ma and 41.5ma)
7189 CBS gray plate NOS 1960 (47ma)
(!!!!) (Best Pair) 7189 Sylvania black plates NOS 1970 era (42ma and 46ma)
7189 Sylvania gray plate NOS 1970 era (46ma)
7189 Sylvania gray plate NOS 1960's (55ma)
(!) (Recommended Sylvania Pair) 6BQ5 Sylvania black plate 1960's and 1973 (68ma and 62.5ma) (recommended for FIXED-BIAS amp only due to high current)
7189 Westinghouse gray plate NOS 1960's (46ma)
7189A GE NOS 1969 (47.2ma)
7189A GE NOS 1984 (59.5ma)
(!!!) (Single) 7199 RCA Black Plates NOS 1964 (10.2ma pentode, 12ma triode)
(!!) 7199 RCA Black Plates NOS around 1960 era (9/7.8ma)
(!!!!) (Recommended Pair) 7199 RCA black plates NOS 1960's (12/6.6ma and 13.2/7.0ma)
7199 RCA Black Plates NOS 1963 (10.4/7.6ma)
(!!!) (Best Pair) 7199 RCA Black Plates NOS 1960's (14/7.2ma and 14/8.2ma)
(!!) (2nd Best Pair) 7199 Sylvania NOS 1960's and 1985 same build (12.5ma/9.6ma and 12.3/10.2ma) 1-3% matched
(!!) (Single) 7199 Sylvania NOS 1960's (11.8ma pentode, 7.8ma triode)
(!!) (Good Value Single) 7199 Sylvania like new 1962 (11ma pentode, 8.5ma triode)
(!!) (Best Value Single) 7199 Sylvania branded GE NOS 1966 (10ma/8.6ma)
71A Cunningham Balloon used/tests like new 1930's (30ma)
71A Sylvania branded Hytron NOS 1947 (22ma)
(!!) (Single) 71A Tungsol NOS and RCA like new 1940's in white boxes (23.6ma and 23.5ma) 1% matched
71A Raytheon 4-Pillar box-plate used/strong 1930's (24.8ma)
71A Raytheon NOS 1940's (27.5ma)
71A RCA Radiotron Balloon used/good 1930's (21ma)
71A Sylvania used/good 1930's (21ma)
71A Super Silvertone by Sylvania engraved base NOS 1937 (19ma)
721A Sylvania NOS 1943 (1 in stock)
7234 MU NOS
7239 GE NOS
7241 Tungsol used - sold as-is untested - 1959 - slightly tilted glass (1 in stock)
7247=12DW7 EICO MULLARD UK used/good 1962 (0.7/9.2ma)
(!!) (Best Overall Single) 7247=12DW7 GE branded RCA NOS pinched plates 1970 (1.2ma and 14.5ma) (Highest Ma and Gm)
7247=12DW7 GE branded RCA used/good 1960's (0.8/9.3ma)
(!!) 7247=12DW7 GE branded Westinghouse "U" getter used/good early 1960's (0.7ma and 8.6ma)
(!!) 7247=12DW7 GE branded Tungsol tall gray ribbed plates NOS 1960's (1.0ma and 10.4ma)
(!!!) (Recommended Pair) 7247=12DW7 Mullard England rebranded Hammond and Bogen 1965-1970 (1.2/10ma and 1.1/10ma) (1-3% matched)
(!) (Best Single) 7247=12DW7 Amperex Globe Logo by Matsushita Japan NOS 1967 similar sound to Mullard (1.5ma and 11.6ma) (High mA and Gm)
(!!!) (BEST PAIR) 7247=12DW7 CBS gray ribbed plates NOS 1960 (1.0/10ma and 1.1/9.5ma)
(!!) (Best Overall Single) 7247=12DW7 GE NOS 1970 (1.3ma and 13.6ma) (Highest Ma and Gm)
7247 GE NOS tall gray ribbed plates 1970's (1.1ma and 9.4ma)
(!!!) (Best Mullard Pair) 12DW7=7247 Mullard UK rebranded Magnovox and Bogen like new 1965-1971 (1.1ma/12ma and 1.3/11.5ma) (sweet sound)
7266 GE NOS (10 in stock)
7289=3CX100A5 (similar to 2C39A Triode) Planar Pulse Triode
(!) 7308 Philips SQ Holland NOS 1965 faded printing in white box (13.4/19.4ma)
7308 Sylvania NOS 1976 mis-matchded sections (9.2/19ma)
7360 US Brands NOS (8 in stock)
7370 GE NOS (10 in stock)
7408=6V6GT Russian NOS branded International 1970's (46.5ma)
(!) (Best Single) 7408=6V6GT Sylvania branded Amperex NOS 1974 (45ma) (rare)
7408=6V6GT Westinghouse used/like new condition "U" getter 1960 era (40.5ma) (rare)
7475 Haltron NOS
7486 GE NOS
75 Coronado used/tests like new 1940's (39/19)
75=VT-75 Tungsol Dual-Diode Triode used/good 1940's (34/19)
75=VT-75 National Union Dual-Diode Triode NOS 1950 era (40/19)
75=VT-75 Raytheon NOS 1940's in white box (41/19)
75=VT-75 RCA Dual-Diode Triode NOS 1948 (36/19)
(!) 75=VT-75 Sylvania Zenith NOS 1940's (39/19)
7548
7551 Sylvania NOS (20 in stock)
7558 US Brands NOS (2 in stock)
7581 Tungsol brown base used/75% 1964 (52.5ma)
7581A GE branded RCA NOS 1974 (59.5ma)
7581A GE branded RCA used/good 1973 (56ma)
7581A GE NOS 1979 (87ma)
7581A GE NOS 1979 (76ma)
7581A GE used/good 1974 (59ma)
7586 Hytron NOS 1960's (88/60)
7586 Hytron NOS 1960's (86/60)
7586 Philips Nuvistor NOS (1 in stock)
7586 RCA nuvistor NOS 1956 (102/60)
7586 RCA Nuvistor NOS 1972 (84/60)
7586 Siemens West Germany nuvistor NOS 1960's (82/60)
7586 Siemens West Germany nuvistor NOS 1960's (91/60) (AKG C12A mic)
7586 Siemens West Germany nuvistor NOS 1960's faded printing (84/60)
7586 Sylvania Nuvistor NOS (75/60)
7586 Sylvania Nuvistor NOS (1 in stock)
7587 RCA Kuhl-Tube cryo-treated NOS 1950's original boxes (8 in stock)
7587 RCA NOS 1950's original boxes (18 in stock)
7587 US Brands NOS (2 for $58)
7591 Tungsol used good 1963 (55ma, Gm=8100)
7591 Westinghouse branded RCA NOS 1963 (51.5ma, Gm=9050)
7591 Fisher Westinghouse used/good/75% 1963 (43.5ma, Gm=7450)
7591A Sylvania branded RCA coin-base NOS 1970's (63ma, Gm=10,000)
7591A Sylvania branded RCA used/75% 1968 (51ma, Gm=7,600)
75C1 Amperex by Mullard NOS 1971 voltage regulator (0 in stock)
75C1 Amperex Holland 1970 era voltage regulator (0 in stock)
75pf / 60 / 35 United Electronics vacuum cap (single)
(!!!) 76 Crosley by Ken Rad engraved base like new 1930's (5.7ma)
(!!!) 76 RCA branded Raytheon NOS 1954 (5.1ma)
(!!!) 76 RCA NOS 1940's (5.4ma)
(!!!) 76 RCA NOS 1940's (6.0ma)
(!!) 76 Sylvania NOS 1940's (5.8ma)
(!!!) (Recommended Pair) 76 Sylvania NOS - 1 tube branded National Union 1947 era same build (5.3ma and 5.6ma)
(!!!) (Best Single) 76 Sylvania Philco engraved base NOS 1930's (6.2ma)
7699 Amperex PQ USA NOS
*** (BEST PRICE) *** 77 US Brands NOS 1940's ($2.99 each minimum 2 purchased)
7701 NOS
7716 GE NOS
7719 Tungsol NOS (5 in stock)
7734=6GE8 NOS (7 in stock)
7761 Sylvania NOS
7768 GE 1962
JAN-7788 Amperex USA NOS 1986 (54ma)
7788=E810F Amperex PQ USA NOS 1969-1970 (33ma)
78 US Brands used/good (6 in stock)
78 US Brands NOS (3 in stock)
(Best Single) 7868 GE branded RCA NOS 1970's (62ma)
7868 RCA black plate tipped top NOS 1960 era (59ma)
(!!!) (Single) 7868 RCA gray plate used/75% 1970 era (47ma)
(!!!) (Single) 7868 RCA gray plate used/75% 1970 era (47.6ma)
(!) (Single) 7868 RCA Relco like new 1970 era (55ma)
7868 Sylvania branded RCA tipped top used/good 1970's (57.5ma)
7868 Sylvania NOS 1976 (71ma)
7868 Sylvania tipped top used/good 1970 era (48ma)
7868 Sylvania tipped top used/tests like new 1960's (65ma)
7868 Wurlitzer RCA black plate tipped top NOS 1962 (48.5ma)
79 Cunningham NOS (2 in stock)
79 Tungsol NOS in white box 1940's
7905 Sylvania branded RCA NOS (5 in stock)
7984 GE NOS (15 in stock)
7A4=XXL GE NOS 1949 (102/50)
7A4=XXL Sylvania 1940's used/tests like new (85/50)
7A4=XXL Sylvania 1940's used/tests like new (88/50)
7A4=XXL Sylvania branded Philco NOS (1 in stock) (Hallicrafters)
(BEST PRICE) 7A5 NOS (4 for $11.99)
7A5 Sylvania NOS (2 in stock)
7A5 US Brands NOS (20 in stock)
(BEST PRICE) 7A6 US Brands NOS (4 tubes for $11.99)
7A6 US Brands NOS (12 in stock)
7A7 National Union NOS (2 in stock)
7A7 Sylvania NOS (1 in stock)
7A8 US Brands NOS (4 in stock)
7A8 Sylvania branded GE NOS 1952 (98/60)
7AD7 US Brands NOS (8 in stock)
(!!) (PAIR) 7AF7 Sylvania branded RCA and GE NOS black round plates NOS 1956-1958 (7.0/7.6ma and 8.2/7.8ma) (close Gm matching)
7AF7 Sylvania branded Raytheon NOS gray round plates NOS 1948 printed in 1952 (10/10ma) 1-2% section balance
7AN7=PCC84 NOS (2 in stock)
7AU7 Raytheon by Hitachi Japan NOS (5 in stock)
7B4 Raytheon NOS 1950 era (1 in stock)
(READ REVIEW) 7B4 US Brands NOS (2 in stock)
(BEST PRICE) 7B5 US Brands NOS (4 tubes for $11.99)
7B5 US Brands NOS (20 in stock)
7B6 US Brands NOS (10 in stock)
7B7 Sylvania branded RCA NOS 1955 (73/43) (Best Single)
7B7 Sylvania NOS 1957 (72/43) (Best Single)
7B7 Sylvania NOS 1951-1952 (1 in stock)
7B7 Tungsol NOS 1949
7B8 US Brands NOS (14 in stock)
(BEST PRICE) 7C4=1203A US Brands NOS (diode) (4 for $11.99)
7C4=1203A US Brands NOS (diode) (9 in stock)
7C5 Philco Sylvania used 1940's (46.6ma)
7C5 RCA NOS 1960 era (44ma)
7C5 Sylvania used/very good 1940's (50ma)
7C5 Sylvania NOS 1942-1943 (42ma)
7C5 Sylvania branded RCA coated glass NOS 1956 (34ma)
7C5 Sylvania used 1940's (43.4ma)
7C5 Sylvania branded GM Genuine Parts used/tests like new 1948 (50.5ma)
7C5 Tungsol NOS 1956 (39ma)
(BEST PRICE) 7C5 US Brands used/good mostly 1950's (4 tubes for $16.99)
7C6 RCA Victor like new 1948-1950 (23/15)
7C6 Sylvania branded CBS Hytron NOS 1952 (23/15)
7C6 Sylvania branded Raytheon NOS 1950's (1 in stock)
7C6 Sylvania branded Tungsol NOS 1950's
(Best Single) 7C6 Sylvania NOS 1950's (102/60)
(BEST PRICE) 7C7 US Brands NOS (4 tubes for $12.99)
7C7 US Brands NOS (21 in stock)
(!) (BEST PRICE) 7E5=1201 US Brands NOS (4 tubes for $14.99)
7E5=1201 US Brands NOS (5 in stock)
7E6 CBS NOS (92/60)
7E6 US Brands NOS (7 in stock)
(BEST PRICE) 7E7 NOS (4 tubes for $11.99)
7F7 Sylvania rebranded GE round gray plates NOS 1952 (2.0/2.4ma)
(!) (Recommended Single) 7F7 Sylvania rebranded JAN-CBRZ-7F7 round gray plates used/like new 1940's (2.9/3.2ma) (highest testing single)
7F7 Sylvania rebranded RCA NOS 1969 (1.8/1.8ma)
7F7 Sylvania rebranded RCA Victor parallel round gray plates used/good 1950 (2.1/2.4ma)
7F8 Sylvania NOS 1946-1947 (40/25 and 48/25)
7F8 Sylvania used/good 1957 (34/25 and 38/25)
7F8W Sylvania branded United NOS 1950 (36/25 and 42/25)
7F8W Sylvania NOS 1952 reprinted in 1970's (41/25 and 50/25)
7FC7=PCC89 Mullard International NOS around 1970 (6 in stock)
7G7=1232 GE NOS (1 in stock)
(BEST PRICE) 7GS7 Japan NOS (4 tubes for $11.99)
7GS7 Japan NOS (13 in stock)
7GV7 NOS (4 in stock)
7H7 GE by Sylvania used/tests like new 1949 (105/60)
7H7 Sylvania branded RCA NOS (1 in stock)
7H7 Sylvania branded Tungsol NOS (3 in stock)
7H7 Sylvania / Philco NOS (4 in stock)
7H7 Sylvania used/good 1940's (100/60)
7H7 Zenith by Sylvania used/good 1940's (105/60)
7HG8=8HG8 NOS (6 in stock)
7J7 US Brands NOS (6 in stock)
(BEST PRICE) 7K7 US Brands NOS (4 tubes for $12.99)
(BEST PRICE) 7L7 US Brands NOS (4 tubes for $9.99)
7M-P18 Raytheon Japan NOS (10 in stock)
(!) (Good Single) 7N7 Sylvania branded GE NOS 1961-1962 (7.5/8.3ma)
(!!) 7N7 Sylvania branded Philco used/good short bottle parallel gray plates 1948 (7.2/7.6ma)
7N7 Sylvania chrome top branded GE low hours/tests like new 1957 (7.4/11.4ma)
(!) (Best Single) 7N7 Sylvania NOS 1960 era (10.8/11.2ma)
(!!!!) (Best Pair #3) 7N7 Sylvania branded RCA amd Sylvania 1960 era (8.4/9.5ma and 8.6/9.8ma) (same Gm) 1-3% matched
(!!!) (Recommended Pair) 7N7 Sylvania NOS branded GE and RCA 1960-1965 (9.4/8.0ma and 8.0/8.4ma) (close Gm)
(!!!!) (Best Pair) 7N7 Sylvania branded RCA 1960 era (10.4/10ma and 10.6/9.8ma) (High Gm) 1-3% matched (strong pair)
(!!!!!) (Best Pair 1950's) 7N7 Sylvania chrome top NOS 1956-1957 1-3% matched (8/9ma and 8.6/8.4ma) (best 6SN7 sub using adapter sockets)
(!!!!) (Best Pair #2) 7N7 Sylvania branded RCA and Sylvania NOS 1960-1963 (9.4/9.0ma and 9.6/9.8ma) (High Gm) 1-5% matched
(!) (SINGLE) 7N7 Sylvania TALL BOTTLE branded Hytron parallel black plates chrome top NOS 1952 - small chip/blemish at top of tube (7.6/7.8ma)
7N7 Sylvania branded RCA chrome top used/good 1956 (6.6/8.4ma)
(!!) 7N7 Sylvania NOS 1960's (8.6/10.2ma)
7Q7 GE NOS 1950's (4 in stock)
7Q7 National Union NOS (3 in stock)
7Q7 RCA NOS 1950's (4 in stock)
7R7 Tungsol NOS 1947-1948 (52/38)
7R7 US Brands NOS (4 in stock)
(BEST PRICE) 7S7=7J7 NOS (4 for $12.99)
7S7=7J7 US Brands NOS (8 in stock)
(BEST PRICE) 7V7 NOS (4 for $12.99)
7W7 US Brands NOS (4 in stock)
(BEST PRICE) 7X6 US Brands NOS (4 tubes for $9.99)
7X6 US Brands NOS (5 in stock)
7X7=XXFM Sylvania branded Emerson NOS 1949 (97/60)
7X7 Sylvania branded Tungsol NOS (3 in stock)
7X7 Sylvania branded RCA NOS slightly tilted glass (98/60)
7Y4 Brimar England NOS 1950's (4 in stock) (rectifier)
7Y4 US Brands NOS (5 in stock) (rectifier)
(BEST PRICE) 7Y4 US Brands NOS (rectifier) (4 tubes for $11.99)
7Z4 US Brands NOS (8 in stock)
AZ21 Tungsram NOS loktal base black plates 1940's (8 in stock)
8 pin ceramic pc mount sockets with standard pins (30 in stock)
40uf and 20uf @ 350V and 10uf/300V and 20uf/25V Bendix FP cap NOS (2 in stock)
(!) 80 Delco by Sylvania ST-shape used/tests like new 1947 rattle inside base (57/40 and 60/40)
(!!) 80 Fapesa Miniwatt Argentina NOS 1950's faded printing (52/40 and 56/40)
(!!) 80 GE GT-shape NOS 1957 slightly tilted glass (56/40 and 60/40)
(!!) (Recommended Pair) 80 GE GT-shape NOS 1960 (56/40 and 62/40 x 2 tubes)
(!) 80 GE Uruguay GT-shape NOS 1950's tilted glass (58/40 and 60/40)
(!) 80 National Union used/strong 1940's (53/40 and 56/40)
80 Raytheon engraved base used/good 1930's small rattle inside base (46/40 and 52/40)
(!!) (Recommended Single) 80 Raytheon like new 1950 (55/40 and 58/40)
80 RCA Cunningham used/good 1930's (44/40 and 47/40)
(!) 80 RCA GT-shape like new 1957 (60/40 and 64/40)
(!!!) (Best Sounding Pair) 80 Sylvania Philco NOS 1950 (54-57/40 and 56-58/40)
(!) 80 Tungsol ST-shape tests like new 1940's (54/40 and 56/40)
(!) 80 Tungsol ST-shape tests like new 1940's (57/40 and 60/40)
(!) 80 Tungsol ST-shape used/good 1946 (52/40 and 54/40)
(!!!) (BEST PRICE) 80 US Brands used/good (5 in stock) ($9.99 each)
(!!!) (BEST SINGLE) GL-800=VT-64 GE gray plate NOS 1948 (57ma and Gm=2500) (not a pair)
8005 RCA like new 1940's (94/50) (strong single)
8013A NOS (8 in stock)
(BEST PRICE) 8013A NOS (4 tubes for $79.99)
8020 US Brands NOS (6 in stock)
8025 RCA NOS original box
8032 RCA NOS (2 in stock)
8037=B-5031 Burroughs NIXIE (0-9 display) roundish top used (10 in stock)
(!!) (Best Single) JAN-CNU-805 National Union NOS 1940-1945 reboxed large getter
8058 RCA Nuvistor NOS (2 in stock)
(!!) (Recommended Pair) 8068 GE Hewlett Packard scratch on glass and GE NOS 1970-1971 (46.5ma and 48ma) (Highest Ma)
(!!) 8068 GE NOS 1985 (39ma)
(!!) 8068 GE NOS 1985 (35ma)
(!!!!) (BEST OVERALL Pair) 8068 GE NOS 1983 (46ma and 46ma)
(!!) (Best Value) 8068 GE tan/brown base like new 1963 (48ma) (highest testing single)
(!!) (Best Single) 8068 GE tan base NOS 1964 (44ma)
(!!) 8068 GE tan/brown base used/good 1964 (35ma)
(!!!!) (Best Single) 8068 GE NOS 1983 slightly tilted glass (47.5ma)
(!) 807 GE Italy gray plate NOS 1967 same build as UK made (80ma)
(!) 807 Mullard UK rebranded GE NOS 1967 (71ma)
(!) 807 Mullard UK rebranded Sylvania NOS 1966 (81ma)
(!) 807 National Union black plate NOS 1954 (73ma)
807 RCA black plate used/good 1968 (54.2ma)
(!!!!) (Pair 1940's) 807 RCA black plate NOS 1940's same build (73ma and 79ma)
(!!!) (Good Value Pair) 807 RCA Collins used/good 1940's (59ma and 66ma)
807 RCA 1940's used/tests like new white heat shrink around base (68ma)
(!) 807 Russian gray plate branded GE England used/good 1975 (57.8ma)
(!) 807 Russian gray plate branded GE England used/very good 1976 (63.5ma)
(!) 807=VT-100A National Union black ribbed plate NOS 1945 (60ma)
8072 RCA NOS (4 in stock)
8077 RCA branded Sylvania NOS (8 in stock)
8077 RCA NOS 1960's (1 in stock)
8077 US Brands NOS (3 in stock)
(!!!) (Best Pair) JAN-CRC-808 RCA NOS 1945 (52/36 and 52/36)
8084 NOS (8 in stock)
809 RCA used/good 1957 (53/42)
(!) JAN-809 RCA NOS 1979 (52/42)
(!!!) (BEST PAIR) 809 RCA ceramic base like new 1940 era (68/42 and 70/42)
809 RCA FAA NOS 1963 in white box (64/42)
80uf/350, 100/350, 10/300, 20/50 Sprague FP cap in white box (3 in stock)
81 ST-19 Harvey Burnam by RCA NOS engraved base 1940's (54/40)
(!) (#1 81 ST-19 glass shape) 81 ST-19 Purotron made by RCA "engraved base" NOS in Sparton box 1940's (56/40) (strong output)
(!!!) (Best Pair) 81 ST-19 RCA NOS original boxes 1940's (1 pair)
81 ST-19 RCA/Radiotron NOS RED PRINTING in original box (54/40)
(!) 810 RCA black plate used/tests like new 1940's reboxed - large getter
8102 GE NOS (20 in stock)
(BEST PRICE) 8102 GE NOS (4 tubes for $9.99)
(!!) (PAIR) 811 RCA and RCA branded GE like new 1947-1951 (57/36 and 52/36)
(!!) (Good Value Pair) 811 RCA used/strong branded RCAF and EE (60/36 and 57/36)
(!!!) (Good Value Pair) 811 RCA used/good branded RCA and EE (50/36 and 50/36)
(!!!!) (Recommended Pair) 811A RCA branded GE NOS and RCA used/very good 1956-1957 same build (55/36 and 56/36)
(DISPLAY TUBE) 811A SYLVANIA - tubes lights but is non-functional - a few glass chips inside tube
(!!!) (Best Single) 812A RCA 1960's rebranded as Amperex NOS 1979 slightly tilted glass a few scratches on base
(SINGLE) 812A RCA used/strong 1959 faded getter (74/56)
8136 GE NOS (1 in stock)
8136 GE used/good (4 tubes for $9.99)
(!) 814=VT-154 GE brown base like new 1940's (108ma)
(!) 814=VT-154 GE brown base like new 1940's (118ma) (Highest mA and Gm)
(!!!) (Recommended) 814=VT-154 GE ceramic base like new 1940's (105ma)
(!) 814=VT-154 RCA NOS 1940's (105ma)
815 RCA like new a few stress cracks in base
815 RCA NOS 1940's (1 in stock)
8156 GE NOS (1 pair)
8156 GE NOS (1 pair)
8156 GE NOS (1 pair)
8156 GE NOS (1 pair)
(BEST PRICE) 8156 GE NOS (4 tubes for $24.99)
8156 GE NOS (30 in stock)
816 RCA NOS 1954 (70/40)
82 Majestic Balloon NOS 1930 era (54/40 and 54/40) (rare)
82 RCA NOS 1948
82 Tungsol NOS 1948 (54/40 and 60/40)
8245 NOS
(!!!) (Best Pair) 826 Ken Rad NOS 1942 same date codes original boxes strong emission
(!!) (Recommnded Pair) 826 Ken Rad NOS 1942-1943 (1 pair)
8298=6146B Motorola NOS (3 in stock)
3E29=829B Ken Rad NOS 1940's (1 tube only - no pairs)
(!!!!) (Best Pair) 83 GE NOS 1960's (62-65/40 and 62-63/40)
(!!) 83 RCA tests like new 1940's (58/40 and 60/40)
(!!!) 83 Westinghouse low hours/tests like new 1948 small amount of graphite flaked off one plate (62/40 and 63/40)
833A Amperex with long tubulation - sold as display tubes - but could be turned into working 833A with right equipment (1 in stock)
836 Raytheon NOS 1940's in white box (53/40)
837 US Brands NOS (5 in stock)
8370 Electronic Enterprises Hydrogen Thyratron NOS 1968 sold as-is (24 in stock)
8370 ITT USA Electron Hydrogen Thyratron NOS 1966-1967 sold as-is (2 in stock)
84=6Z4 Belmont engraved base used/good 1930's (50/40 and 50/40)
84=6Z4 Greylock USA by National Union like new condition 1940's (49/40 and 54/40)
84=6Z4 Philco engraved base used/very good 1940 era (49/40 and 52/40)
84=6Z4 Philco used 1950's (44/40 and 46/40)
84=6Z4 Philco used/fair 1940's (42/40 and 43/40)
84=6Z4 RCA NOS GT-shape glass tilted glass 1967 (47/40 and 48/40)
84=6Z4 RCA NOS GT-shape glass slightly tilted glass 1967 (44/40 and 47/40)
84=6Z4 Wizard by Sylvania used/good 1940's (50/40 and 52/40)
841 RCA Deforest balloon NOS original box
(!!!!) (Best Quad) 8417 RCA by Sylvania NOS 1970's (95.5, 96, 98, 99.6ma)
(!!!) (Recommended Pair) 8417 GE NOS 1969 and 1986 same build (91ma and 94.6ma)
(!!!) 8417 GE NOS 1986 (103.5ma)
8417 GE used/tests like new 1970's (97ma)
(!!!!) (Best Quad) 8417 RCA by Sylvania NOS 1960's - 1970's (100, 101.6, 103, 102ma)
(!!!) (Best Single) 8417 Sylvania NOS (121ma)
(!!) (BEST VALUE PAIR) 8417 Sylvania rebranded GE NOS in white boxes 1970's (86ma and 84ma)
8417 Sylvania branded GE used/good 1970's (87ma)
8417 Sylvania branded GE used/good 1970's (92.6ma)
(!!!!) (Recommended Pair) 8417 Sylvania branded RCA NOS 1972-1973 (119.2ma and 123.7ma)
(!!!) (Single) 8417 Sylvania branded Dumont NOS 1980 (84ma)
(!!!) (Best Sylvania Single) 8417 Sylvania NOS branded Westinghouse NOS 1973 (113mA)
(!!!!) (Factory Matched Pair) 8417-P Sylvania NOS same build 1960's (92ma and 92.5ma)
(!!) (Recommended Pair) 8417 Sylvania NOS 1970 era (92.6ma and 93.8ma)
(!!) (Best Pair) 8417 Sylvania NOS 1970 era same date codes (112.2ma and 114.5ma)
8417 Westinghouse Bogen "tan base" used/tests like new 1964 (102.6ma)
8417 Westinghouse Bogen "tan base" used/good 1964 (127ma)
8417 Westinghouse engineering sample NOS 1960's (94.5ma)
8417 Westinghouse "tan base" NOS 1964 triple getter (108ma) (rare)
(!!!) (BEST PAIR) 8417 Westinghouse "tan base" NOS 1960's large triple getters (114ma and 115.5ma) (rare)
8417 Westinghouse "tan base" used/good 1960's (71ma)
NL-843 National Nixie tube used 1968 (13 pins) (1 in stock)
8445 Tungsol Motorola NOS
(BEST PRICE) 8458 Amperex USA NOS (4 for $49.99)
8458 Amperex USA NOS (11 in stock)
85 no printing used/strong 1940's (50/25)
85 RCA used/good 1940's (44/25)
85 Tungsol JAN NOS 1944 (50/25)
85 RCA/Radiotron engraved base used/good 1930's
(BEST PRICE) 8509 NOS (4 for $99.99)
8509 NOS (8 in stock)
8532=6J4 and 6J4WA Sylvania NOS 1970 - 1980 (5 in stock)
8552 RCA Motorola NOS 1977 (130ma)
8580 Amperex NOS
85A2=0G3 Amperex by Mullard UK NOS 1960's-1974 (8 in stock)
85A2=0G3 Amperex Holland NOS 1961 (1 in stock)
85A2=0G3 Bharat Electronics India branded Mullard NOS 1970's (70 in stock)
(BEST PRICE) 85A2=0G3 Bharat Electronics India branded Mullard NOS 1970's (4 tubes for $9.99)
(PAIR) 85A2=0G3 Mullard UK NOS 1955-1959 (1 pair)
85AS Raytheon NOS
8608=M11EL Amperex UK Power Pentode 1970-1971
864=VT-24 Hytron USA NOS 1940's (3.4ma)
864=VT-24 Hytron USA NOS 1940's (10 in stock)
8643 Amperex USA 1972 branded GE 1973 NOS Gold Plated Pins in white box (1 in stock)
866A GE low hours/like new 1940's
(!!!) (Recommended Pair) 866A GE NOS 1971
(!) (SINGLE) 866A GE NOS 1971 (2 in stock)
866A=VT-46A RCA NOS 1942 (62/40)
(!!!) (Best Value Pair) 866A RCA like new 1956-1959 in white boxes (60-62/40 x 2 tubes)
(!!!) (Recommended Single) 866A RCA tests like new 1956 (58/40)
866AX Amperex Holland black base NOS 1960's (54/40)
866AX Amperex France brown base 1965 tests like new, a few scratches on base, reboxed
(BEST PRICE) 868 Photocell NOS (4 tubes for $49.99)
(Best in stock) 872A RCA NOS 1946
UX-874 Radiotron Balloon tests like new 1930 era
874 RCA NOS (1 in stock)
(PAIR) 874 RCA test like new 1940's (1 pair)
874=US Navy CRC 38274 RCA Radiotron Balloon tests like new 1930's
8745=7815R GE 1991 as-is
(BEST PRICE) 884 NOS (4 for $24.99)
884 NOS (8 in stock)
885 RCA used/good no printing 1940's
885 RCA used/good 1947
89 US Brands NOS (6 in stock)
(BEST PRICE) 89 US Brands NOS (4 tubes for $17.99)
(BEST PRICE) 8906 GE sealed NOS (4 tubes for $99.99)
8965 Eimac NOS hermetically sealed
(!) 8BQ5 Tungsol NOS 1960 era (40ma)
(!!!) (Best Value) 8D8=EF86 Brimar UK quad mica NOS/75% 1961 (2.0ma)
8FQ7/8CG7 Raytheon Japan by Toshiba NOS (6.4/7ma)
8FQ7/8CG7 Sylvania used/good (6.2/7.0ma)
8FQ7 GE NOS 1962 (6.5/7.5ma)
(!!!!) (Good Value Pair) 8SN7GTB Sylvania GM Delco "chrome top" NOS 1957 same build (6.4/7.2ma and 7.4/6.2ma) (Schiit Freya, Rogue, Modwright OPPO, Cary) (1-5% matched)
9-7 Amperite Ballast NOS (4 in stock)
9 pin threaded spring loaded tube shield (for 6FQ7, 12BH7A, 6V4) (M903)
(BEST PRICE) 9001 US Brands NOS (4 tubes for $14.99)
9001 US Brands NOS (26 in stock)
9002 RCA used/good 1940's - 1950 (2 in stock)
9003=VT-203 RCA NOS 1944 original boxes (51 in stock)
(BEST PRICE) 9004 RCA NOS 1940's (4 for $14.99)
9004 RCA NOS 1940's (20 in stock)
90C1=CV2225=QS.1215 Voltage Regulator NOS (10 in stock) (similar to 5651)
90C1 Valvo Germany Voltage Regulator NOS 1960's (15 in stock) (similar to 5651)
90C1 Valvo Germany Voltage Regulator NOS (1 in stock) (similar to 5651)
90CV Valvo Germany NOS (2 in stock) (phototube)
918=CE-1C US Brands NOS (4 in stock) (Photocell for sound)
920 NOS (10 in stock)
921 US Brands NOS (5 in stock)
922 Photocell Cartridge Type NOS (set of 5 NOS)
923 NOS (6 in stock)
927 GE NOS Photocell for 16MM projector 1963
927 RCA tests like new - high sensitivity 1959
927 RCA used/very good - good sensitivity 1958 (2 in stock)
929 RCA used/good 1951
929 RCA NOS 1947
930=1P40 CBS Photocell NOS
930 RCA used 1960
950 Raytheon NOS 1940's
955 US Brands NOS (3 in stock)
956 RCA NOS (1 in stock)
956 US Brands used/good 1940's (2 in stock)
957 RCA NOS (8 in stock)
95A1 Mullard NOS
97-136A01=8643 Amperex USA 1974 branded Motorola NOS Gold Plated Pins (1 in stock)
99=X-199 Silvertone NOS 1934 (2.5ma, Gm=500) (strong single)
99=X-99 RCA Radiotron NOS 1930's in sealed box (2.2ma)
991 Kuthe Labs NOS 1945 (1 in stock)
9P3-30 Majestic Ballast used
ABL1 Miniwatt Dario used/good 1940's
AC50 Valvo Germany used/some like new 1940's (20 in stock)
(!!) AZ1 Miniwatt Dario France NOS 1954-1955 (1 in stock)
AZ11 Ultron Germany NOS 1960's - 1970's (1 in stock)
AZ12 Ultron Germany NOS 1950's rattle inside base from dried glue particles (1 tube)
(BEST PRICE) AZ31 NOS (4 tubes for $99.99)
AZ31 NOS (8 in stock)
AZ41 Philips Holland "D" getter NOS 1950's (2 in stock)
AZ41 Philips Miniwatt Holland "D" getter NOS 1959 (1 in stock)
AZ41 Philips France NOS 1961 (1 in stock)
B-5032 Burroughs used 1960's (2 in stock)
B-9M-15822 JFD replacement for Belmont NOS (1 in stock)
B-9M-16067 Belmont JFD Air Cooled Ballast NOS
B4A ceramic base socket NOS for 715A/B/C and Tungar bulbs
B5H-4 Amperite Ballast used
Beatles Revolver CD low hours / like new condition
(Best 12AT7 Value) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1984 (3 in stock)
(!!!!) (Best 6922 Single) USN-CEP-6922 Amperex USA NOS 1964 pins #7-#8 gently cleaned of oxidation (18.5ma/20.2ma) (Best American Made 6922)
(!!!!) (Best 6X5GT Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 (64/40 and 65/40) (Best Audio Grade 6X5GT)
(!!!) (2nd Best Pair) ECL82=6BM8 Philips Mullard UK NOS 1969 same date codes (1.7/31.5ma and 1.7/35ma)
(!!) (BEST GE Pair) 5963=12AU7 GE branded RCA NOS ribbed plates 1978 (13.0/11.4ma and 12.6/11.4ma)
(!!!) (Best GE Pair) 6350 GE NOS 1969 (11.2/10.8 and 11.4/11.8ma)
(!!!!) (Best GE Single) 6BK7B GE gray plates NOS "U" getter 1974 (8.0/8.8ma)
(!!!) (Best GE Single) 6EU7 GE NOS pinched gray plates 1975 (56/32 and 58/32)
(!!!) (BEST OVERALL SINGLE #2) GZ32 Miniwatt Dario France NOS 1956 (63/40 and 63/40) small rattle inside base
(!!!) (Best Matched Quad #1) 5Y3GT Philips Holland NOS 1960's (1 set of 4)
(!!) (Best Mullard Pair) EZ80=6V4 Mullard La Radiotechnique Chartres plant France NOS "O" getter halo 1970 (63-64/40 x 2 tubes) 1% matched
(!!!!) (Best Mullard Single) 12AU7A Amperex by Mullard UK NOS ribbed plates 1974 (10.6/11.6ma) (DAC, linestage)
(!!!) (2nd Best Mullard Single) 7247=12DW7 Hammond Mullard ribbed plates like new 1964 (1.0ma and 11.8ma)
(!!!!) (Best Overall GE Single) 12BH7A GE ribbed plates NOS 1981 (11.6/11.8ma) 1-3% section balance
(!!!!!) (Best Overall Pair 1965) 12AU7=ECC82 Mullard UK NOS branded Philips 1965 (10/10.3ma and 9.8/10.0ma) (same Gm) (Rogue, Hovland, Audio Note)
(!!!) (Best Overall Pair 1943) 6X5GT=VT-126B RCA black plates NOS 1943 (62-62/40 and 60-62/40)
(!!!!) (Best Overall Pair) 27 Philco by Sylvania NOS 1940's (7.0ma and 7.0ma) 1% matched
(!!!!!) (Best Overall Pair) 311B Western Electric NOS 1972-1974 (32ma and 33.4ma)
(!!!!!) (Best Overall Pair) 311B Western Electric NOS 1972-1974 (36.2ma and 37.8ma)
(!!!!) (BEST OVERALL PAIR) 5U4GB Raytheon NOS "O" getters 1962 (59-60/40 and 59-60/40) 1% matched
(!!!!) (Best Overall Pair) 5Y3GT Philips Holland NOS 1960's (62-63/40 and 62-64/40)
(!!) (Best Overall Pair) 5Y4G Sylvania NOS 1951 (57-52/40 and 56-52/40) (rare)
(!!!!) (Best Overall Pair) 6112 Philips JAN 1980's (1.2/1.2ma and 1.1/1.5ma) (Highest mA and Gm) (Audio Note, Musical Fidelity)
(!) (BEST OVERALL PAIR) 6AV6 Super Radiotron Australia NOS 1960's (1.6ma and 1.7ma) (same Gm)
(!!!!!) (Best Overall Pair) 6C10 GE rebranded RCA NOS 1960's (Ampeg / Fender) (1.6ma/1.5ma/1.4ma) and (1.5ma/1.8ma/1.4ma)
(!!!!!) (Best Overall Pair) 6J5GT Ken Rad black oval plates NOS 1942 (11ma and 11ma) 1-2% matched
(!!!!!) (Best Overall Pair) 6J5GT Raytheon black ribbed plate NOS 1950 era (9.2ma and 9.0ma) 1-2% matched
(!!!) (BEST OVERALL PAIR) 6K6GT Philco by Sylvania NOS 1950 (46.6ma and 47.4ma)
(!!!) (Best Overall Pair) 864=VT-24 Hytron USA NOS 1940's (3.5ma and 3.6ma)
(!!!!) (Best Overall Pair) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.6/9.6ma and 9.4/9.8ma) 1% matched (can make a quad with another pair)
(!!!!) (Best Overall Pair) JAN-5755 Raytheon Black Plates NOS 1973-1979 (1.9/2.0ma and 1.9/1.9ma) (Highest mA and Gm) 1-2% matched
(!!!!!) (Best Overall Pair) JAN-6550A GE NOS "stapled plates" 1985-1986 (142ma and 143ma)
(!!!!) (BEST OVERALL QUAD) 5U4GB Raytheon NOS "O" getters 1962 1-2% matched
(!!!!) (Best Overall Quad) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (matched quad) 1-2% matched
(!!!!!) (RECOMMENDED QUAD) JAN-6550A GE NOS 1985-1986 (129ma, 130ma, 131ma, 129.5ma) (Close Gm)
(!!!!!) (BEST VALUE QUAD) JAN-6550A GE NOS 1985-1986 (125ma, 126ma, 126.6ma, 127.5ma) (close Gm)
(!!!) (Best Overall Single) 6528A Cetron NOS 1980 (132/139mA)
(!!!!) (Best Overall Single) 6DJ8=ECC88 Philips by Sylvania NOS 1987 (19/17ma) (High Gm) 1-5% section balance (Copy)
(!!!!) (Best Overall Single) 6DJ8=ECC88 Philips by Sylvania NOS 1987 (20/23.6ma) (highest mA and Gm)
(!!!!) (Best Overall Single) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (11.2/11.7ma) 1-2% section balance
(!!!!) (Best Single #3) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (12.0/10.2ma)
(!!!!) (Best Overall Single) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (12.2/12.8ma) 1-3% section balance (highest mA and Gm)
(!!!!) (Single) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.8/8.6ma)
(!!!!) (Best Overall Single) CV4004=12AX7 Mullard box plates NOS 1971-1972 (Gm=1600/1700) (1.3/1.5ma)
(!!!!) (Best Overall Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (10ma)
(!!!) (BEST OVERALL SINGLE) GZ32 Miniwatt Dario France NOS around 1955 (63/40 and 63/40) small rattle inside base
(!!!!) (Best Overall Single) GZ37 Mullard UK NOS 1966 (52/40 and 52/40) 1% section balance
(!!) (BEST PAIR #1) 6BE6 Raytheon NOS 1960's (1.5ma and 1.5ma)
(!!!!) (Best Pair #1) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (50/40 and 50/40 x 2 tubes) 1% matched (Copy)
(!!!!) (Best Pair #1) 6DL5=EL95 Philips Mullard UK NOS 1965 (26.0/26.4ma)
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's (25.0ma and 25.6ma) 1-3% matched (same Gm)
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's (28ma and 28ma) 1-3% matched
(!!!!) (Best Pair) 12AT7=6679 GE gray plates NOS 1977 (7.5/9ma and 7.7/9ma) 1-2% matched
(!!!) (Best Pair) 12BA6 Sylvania NOS 1960's (10.4ma / 10.6ma) 1-3% matched
(!) (Best Pair) 12JB6A GE NOS 1970 era (70ma and 77ma)
(!!) (Best Pair) 12SL7GT GE NOS 1973 (2.9/2.9ma and 2.7/2.6ma)
(!!!!) (Best Pair) 12SN7GTA GE coin-base side getter NOS 1980 (8.4/8.0ma and 8.2/8.4ma) 1-2% matched
(!!!!) (Best Pair 1930's) 30 Sylvania engraved base NOS 1930's (3.2ma and 3.4ma) (same Gm)
(!!) (Best Pair 1960) 6AG7 RCA NOS 1960 (25ma and 26ma)
(!!) (Best Pair 1981) 412A Western Electric NOS "O" getter halo 1981 (53-53/40 x 2 tubes)
(!!!!!) (Best Pair #2) 5687WA and 5687WB GE black plates like new 1970's (39/38.5ma and 37/41ma) (Highest Ma and Gm)
(!!!!) (Best Pair #2) 5842Q Raytheon NOS 1983 (23ma and 24ma) 1-3% matched
(!!!!) (Best Pair #2) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (49/40 and 50/40 x 2 tubes) 1% matched
(!!!!) (Best Pair #2) 6F8G Sylvania and Sylvania Zenith parallel black ribbed plates like new 1940's (8.2/7.8ma and 8.0/7.0ma) 1-3% matched (very close Gm)
(!!!) (BEST PAIR #2) 7247=12DW7 CBS gray ribbed plates NOS 1960 (0.9/9ma and 1.0/9ma)
(!!!!) (Best Pair) 201A Silvertone Balloon NOS and like new 1930 era (4.2ma and 5.0ma) (Highest mA and Gm)
(!) (BEST PAIR) 20LF6 GE NOS 1970 era (101/60 and 102/60)
(!) (BEST PAIR) 20LF6 Sylvania NOS 1970's (100/60 and 100/60)
(!!!!!) (Best Pair #1) 211 GE NOS 1942-1944 original boxes (111.0ma and 112.2ma) (Ongaku, Air Tight, Cary)
(!!!) (Best Pair) 26 Sylvania branded Zenith black plate NOS 1946 (5.4ma and 5.6ma) (rare)
(!!!!) (Best Pair) 27 Philco by Sylvania NOS 1940's (6.3ma and 6.3ma) 1% matched
(!!!!) (Recommended Pair) 27 Philco by Sylvania NOS 1940's (6.4ma and 6.7ma)
(!) (Best Pair) 2A5 Tungsol NOS 1945 (90/50 and 90/50)
(!!) (Best Pair) 2C26A National Union NOS 1940's (71/38 and 72/38)
(!!!) (BEST PAIR #3) 47 RCA branded ARCTURUS NOS 1940's (40.5ma and 42ma)
(!!!!) (BEST Pair #3) 6CW4 GE NOS 1974-1978 (105/60 and 107/60) (strong emission)
(!!!) (Best Pair #3) 6GU7 RCA NOS 1970-1971 (10/13ma and 11/12ma)
(!!) (Best Pair #3) 6V6GT GE coated glass NOS 1952-1953 (44ma and 45.2ma)
(!!!!) (Best Pair #3) 7N7 Sylvania branded RCA 1960 era (8.4/8.4ma and 8.6/8.8ma) 1-3% matched
(!!!) (Best Pair #3) JG-6021A GE NOS 1956-1957 "D" getter (5.1/5.1ma and 4.8/5.2ma) (mil-grade)
(!!!!) (Best Pair) 30 Sylvania NOS 1946 (3.4ma and 3.8ma) (same Gm)
(!!!!) (Best Pair #4) 6DL5=EL95 Philips Mullard UK NOS 1965 (22.0/22.8ma) 1-5% matched
(!!!!) (BEST PAIR #4) JG-12AT7WA=6201 GE NOS "blue tip - red dot" triple mica, "O" getter halo, gray plates 1960-1961 (8.4/7.2ma and 8.0/7.8ma) 1-5% matched
(!!!) (Best Pair) 407A Western Electric NOS "O" getter 1979-1983 (46-42/26 and 46-42/26)
(!!!!) (BEST PAIR) 408A Western Electric NOS 1976 and 1982 (86/60 and 88/60)
(!!!!) (BEST PAIR) 417A Western Electric NOS 1980 (42.5ma and 44ma)
(!) (BEST PAIR) 43 Tungsol NOS 1947-1950 (84/58 and 85/58)
(!!!) (BEST PAIR #1) 47 RCA branded ARCTURUS NOS 1940's (34.5ma and 35.2ma)
(!!!) (BEST PAIR #2) 47 RCA branded ARCTURUS NOS 1940's (40ma and 40.2ma)
(!!!!) (Best Pair #5) 6DL5=EL95 Philips Mullard UK NOS 1965 (24.8/26.0ma)
(!!!!!) (Best Pair) 5670W GE NOS 1986 (8.4/9.4ma and 8.6/9.2ma) 1-3% matched
(!!!!) (Best Pair #2) 5670W GE NOS 1986 (8.0/7.2ma and 8.0/7.4ma) (same Gm) 1-2% matched
(!) (BEST PAIR) 5727=2D21 RCA NOS 1958 (1 pair)
(!!!!) (BEST PAIR) 5842=417A Western Electric NOS 1980 (39ma and 40ma)
(!!!!) (Best Pair) 5842Q Raytheon NOS 1983 (27ma and 29.5ma)
(!!!!) (Best Pair) 5842Q Raytheon NOS 1983 (35ma and 37ma)
(!!!) (Best Pair) 5965 Sylvania NOS 1960's (19.2/18.8ma and 19.6/18.0ma) (Berning, Conrad Johnson, Loth, Exemplar)
(!!!) (BEST PAIR) 5998A Sylvania JAN NOS 1980 (115/114ma and 116/114ma) (5998A=7236) 1-3% matched
(!!!!) (Best Pair) 5R4GB GE black base NOS (48-51/40 and 50-52/40 x 2 tubes)
(!!!) (Best Pair) 5U4GA Raytheon double "D" getters NOS 1956 (57-60/40 and 59-60/40)
(!!!!) (BEST PAIR) 5U4GB Raytheon NOS "O" getters 1962 (59-62/40 and 60-62/40)
(!!!!) (Best Pair) 5Y3GT Philips Holland NOS 1960's (60-64/40 and 60-65/40)
(!!) (BEST PAIR) 5Y4GA Sylvania NOS 1960's same date codes (54-59/40 and 53-58/40)
(!!!) (Best Pair) 5Z4 RCA NOS 1959 (51-51/40 and 52-52/40)
(!!!!!) (Best Pair) 6189W Sylvania NOS 1981 (9/10.2ma and 10/9ma) 1-3% matched (same Gm)
(!!!) (BEST PAIR) 6463 GE NOS 1965 (16.4/16.5ma and 16.8/17.8ma) (same pinout as 6350)
(!!!!!) (Best Pair) JAN-6550A GE NOS "stapled plates" 1985-1986 (131.8ma and 132.2ma) 1-2% matched
(!!!) (BEST PAIR) 6A3 Tungsol coated glass NOS 1940's (64ma and 65ma)
(!) (BEST PAIR) 6A5G Sylvania NOS 1940's - 1 branded Philco - same build (105ma and 107ma)
(!!) (Best Pair) 6A7G Marconi Radiotron Canada NOS 1950 era (47/29 and 47/29)
(!!) (BEST PAIR) 6AE5GT Tungsol branded Delco NOS 1940's (8.5ma and 8.0ma)
(!!!) (Best Pair) 6AG7 RCA NOS 1950-1951 (31.5ma and 32.0ma)
(!!) (Best Pair) 6AG7 RCA NOS 1960's (27ma and 27.5ma)
(!!!) (Best Pair) 6AH6WA GE NOS 1980's (10.6/11ma)
(!!!) (BEST PAIR) 6AL5 RCA NOS 1970's (48-50/40 and 48-50/40)
(BEST PAIR) 6AS6 RCA gray plate branded GE NOS 1965 (5.2ma and 5.4ma)
(!) (BEST PAIR) 6AS6 RCA gray plate NOS 1969 (5.3ma and 5.5ma)
(!!) (BEST PAIR) 6AS6 RCA gray plate NOS 1963-1968 (5.0ma and 5.0ma)
(!) (BEST PAIR) 6AV6 GE NOS 1978 (1.0ma and 1.1ma) (same Gm)
(!!) (Best Pair) 6BA7 Raytheon NOS large "D" getter mid-1950's (66/40 and 66/40)
(!!) (BEST PAIR) 6BM8 Sylvania NOS 1970's (1.8/45ma and 1.7/49ma)
(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (54ma and 54.5ma)
(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania JAN NOS 1960's (56ma and 56ma)
(!!) (BEST PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (62ma and 61.5ma)
(!!!!) (Best Pair) 6BQ7A RCA black plates NOS 1967 same date codes (15/14.5ma and 13.5/16.5ma)
(!!!!) (BEST Pair) 6CW4 GE NOS 1975-1976 (120/60 and 120/60) (strong emission)
(!!) (Best Pair) 6CZ5 RCA black plate 1960's same build (49.5ma and 51ma)
(!!!!!) (Best Pair) 6DJ8=ECC88 Philips Miniwatt Holland "o" getter halo NOS 1963-1964 (19.6/18.0ma and 17.0/20.0ma)
(!!!!) (Best Pair) 6DJ8 Philips ECG USA by Sylvania NOS 1987 (17.2/20.6ma and 17.0/21ma) 1-3% matched
(!!!!) (Best Pair #3) 6EU7 RCA NOS 1967 (48-49/32 and 51-52/32)
(!!!!) (2nd Best Pair) 6EW7 Hitachi Japan branded Westinghouse BIG BOTTLE NOS 1970-1972 (5.8/6.1ma and 58/62ma)
(!!!!) (Best Pair) 6F6G Marconi Spain NOS 1949 (43.6ma and 44.0ma)
(!!!) (Best Pair) 6FQ7 RCA clear top NOS "D" getter halo 1966-1969 (7.2/8.2ma and 8.0/7.8ma) (close Gm)
(!!!!) (Best Pair) 6FQ7 Zenith by GE NOS 1977 (7.2/8.0ma and 7.0/7.8ma)
(!!) (BEST PAIR) 6HB5 Sylvania NOS (105ma and 115ma)
(!!!!) (Best Pair) 6J5GT Ken Rad black round plates NOS 1942 (11ma and 11.6ma) (close Gm)
(!!!!) (Best Pair) 6J5GT Ken Rad black round plates NOS 1942 (8.4ma and 8.4ma)
(!!!!) (Best Pair) 6J5GT Sylvania lightning logo NOS 1945-1946 (8.8ma and 8.6ma) (same Gm)
(!!!!) (Best Pair) 6J5GT Sylvania lightning logo NOS 1945-1946 (7.8ma and 7.7ma)
(!!) (Best Pair) 6J6A Tungsol NOS "D" getter 1961 (9.4/10.5ma and 9.0/11.4ma)
(!!!) (BEST PAIR) 6JB6A RCA branded GE NOS 1960's (80ma and 86ma)
(!) (Best Pair) 6KT8 Sylvania NOS 1970's (4.4/12ma and 5.2/13ma)
(!!) (BEST PAIR) 6LR6 RCA NOS 1970 era (86ma and 96ma)
(!!) (Best Pair) 6SH7 GE metal can NOS 1976 (12.2ma and 12.4ma) **
(!!!!!) (Best Overall Pair) 6SN7GT Tungsol parallel gray plates large O mica NOS 1952-1953, 1 tube has crack in base (8.8/8.2ma and 8.8/8.2ma) 1-2% matched (Cary, Rogue)
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1950 (1.0ma and 1.0ma) 1-2% matched **
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1953 (1.0ma and 1.0ma) 1% matched **
(!!!!) (BEST PAIR) 6SQ7 RCA NOS 1950-1953 (1.0ma and 1.0ma) 1% matched **
(!!!) (BEST PAIR) 7AF7 Sylvania NOS gray round plates NOS 1950-1958 (8.5/8.7ma and 9.2/9.2ma) 1-5% matched (same Gm)
(!) (Best Pair) 816 RCA NOS 1954 (68/40 and 68/40)
(!!!) (Best Pair) 826 Ken Rad NOS 1942 same date codes original boxes strong emission
(!!) (BEST PAIR) 8552 RCA Motorola NOS 1981 (90ma and 90ma)
(!!!) (Best Pair) 864=VT-24 Hytron USA NOS 1940's (3.1ma and 3.1ma)
(!!!) (Best Pair) 864=VT-24 Hytron USA NOS 1940's (3.2ma and 3.2ma)
(!!!) (Best Pair) 864=VT-24 Hytron USA NOS 1940's (3.4ma and 3.4ma)
(!!!) (Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.9/2.1ma and 2.1/2.1ma)
(!!!!) (Best Value Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/test like new (2.1/2.0ma and 2.1/2.1ma) 1-2% matched (Same Gm)
(!!!!) (Best Pair) CV378=GZ37 Mullard NOS 1966 (50-51/40 x 2 tubes) 1% matched
(!!!!) (Best Overall Pair) ECC81=12AT7 Telefunken Germany <> bottom NOS 1965 (9.0/9.8ma and 9.0/9.6ma) 1-2% matched
(!!!!) (Best Pair) ECC83=12AX7 Tungsram Hungary branded IEC Mullard NOS 1982 (1.3/1.6ma and 1.4/1.6ma) 1-3% matched (high Gm)
(!!!!) (Best Pair) ECC83=12AX7 Tungsram Hungary branded IEC Mullard NOS 1982 (1.4/1.4ma and 1.4/1.4ma) 1-2% matched
(!!!!!) (Best Overall Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (12.8/12.4ma and 12.6/12.2ma) 1-3% matched (Highest mA and Gm)
(!!!!) (Best Pair #1A) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.0/1.1ma and 36ma/36ma) 1-3% matched
(!!!!!) (Best Pair #1) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.0/1.1ma and 32.5ma/32.5ma) 1-2% matched
(!!!!) (Best Pair #2) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.0/1.1ma and 33ma/31.5ma) 1-3% matched
(!!!!) (Best Pair #1) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.0/1.1ma and 44ma/45.5ma) 1-3% matched
(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1965 (10.8ma and 11.2ma) 1-3% matched
(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1965 (12.0ma and 12.4ma)
(!!) (Best Pair) EL822 Mullard black plate NOS 1970-1973 (43.2ma and 44.4ma)
(!!) (BEST PAIR) FAA-12AL5 Sylvania NOS 1965 (47-47/40 and 47-48/40)
(!!) (Best Pair) GB-5726=6AL5 Sylvania Gold Brand Gold Pins NOS 1960's (49-49/40 and 49-49/40)
(!!) (Best Pair) GB-5726=6AL5 Sylvania Gold Brand Gold Pins NOS 1960's (49-50/40 and 50-50/40)
(!!!!) (Best Pair) GB-6005 Sylvania Gold Brand Gold Pins NOS coated glass 1960's (47ma and 48ma) (best sound)
(!!!) (Recommended Pair) 6384 Tungsol used/test like new 1960's no printing (71.0ma and 73.5ma) (Highest mA)
(!!!) (Best Pair) JAN-6AH6WA Sylvania NOS 1969 (9.3ma and 9.6ma) (Douk Audio P1) (same Gm)
(!!!) (Best Pair) JAN-6AH6WA Sylvania NOS 1969 (9.8ma and 10ma) (Douk Audio P1)
(!!) (BEST PAIR) JAN-85 Tungsol NOS 1944 (49/25 and 49/25)
(!!!!) (Best Overall Pair) JAN-CEA-5852=6X5GT Bendix NOS 1953 (65-66/40 x 2 tubes) 1% matched (Best Audio Grade 6X5GT)
(!!!!) (Best Pair) JAN-CRP-5814WA Raytheon red tip black plates triple mica "D" getter like new 1958 (9.4/10ma and 9.6/9.4ma) (rare)
(!!!!) (Best Pair) JAN-CRP-5814WA Raytheon red tip black plates triple mica "D" getter like new 1958 (9.8/8.8ma and 9.8/8.8ma) (rare) 1-3% matched
(!!!) (BEST PAIR) JHY-0B2WA CBS NOS 1960 (neon gas) (1 pair)
(!!!) (Best Pair) JHY-6AK5 Hytron black plate NOS 1952 (8.7ma and 8.8ma)
(!!!!!) (BEST PAIR) PCC88=7DJ8 RFT East Germany branded Tesla NOS 1980 era (17.8/17.6ma and 18.0/18.8ma) (highest mA and Gm)
(!!!) (Best Pair) TT-17 Taylor ceramic base control grid recitifier tube 1940's (rare)
(!!!) (BEST PRICE!) (1 set of 10) 6V6 Sylvania metal can NOS (10 for $119.99) (BEST PRICE!)
(!!!) (BEST PRICE) 12AU7A GE used/good 1969 - 1980 (4 for $29.99)
(!!!) (BEST PRICE) 12AU7A GE used/good 1971 - 1978 (4 for $29.99)
*** (BEST PRICE) 26 ST-14 US Brands used/good (14 in stock) ***
(!!) (BEST PRICE!) 6W4GT RCA NOS (10 tubes for $27.99)
(!!!!) (Best Price) 6AU8A RCA NOS (4 for $9.99)
*** (BEST PRICE) UY-224 US Brands used/good
(!!!!!) (Best Quad #3) 6J5GT Sylvania lightning logo NOS 1945-1946 (7.2/7.3/7.3/7.4ma)
(!!!!!) (Best Quad #4) 6J5GT Sylvania lightning logo NOS 1945-1946 (6.8/7.0/7.0/7.0ma)
(!!) (Best Quad) 6CL6 RCA FAA NOS 1963 (35.5, 35.6, 36.2, 37.6ma)
(!!) (Best Quad) 6SH7 GE metal can NOS 1976 (10.4, 10.5, 10.6, 10.6mA)
(!!) (Best Quad) 6SH7 GE metal can NOS 1976 (11.0, 11.2, 11.4, 11.4mA)
(!!!!!) (BEST QUAD #2) JAN-6550A GE NOS 1985-1986 (138ma, 139ma, 136.6ma, 137.6ma)
(!!!!!) (BEST QUAD) JAN-6550A GE NOS 1985-1986 (130.2ma, 131ma, 131.2ma, 132.6ma) 1-3% matched
(!!!!!) (BEST QUAD) JAN-6550A GE NOS 1985-1986 (129ma, 129ma, 129.5ma, 130ma) 1-3% matched
(!!!!) (Best Raytheon Pair) JAN-5755 Raytheon Black Plates NOS 1979 (1.7/1.8ma and 1.9/1.7ma)
(!!) (Best RCA Pair) 5Y4G RCA NOS 1946 (51-53/40 and 52-54/40) (rare) closely matched
(!!!!) (BEST RCA PAIR) 6EU7 RCA NOS 1965 (52-57/32 and 51-55/32)
(!) (Best RCA Pair) 6SG7 RCA metal can NOS 1961 (10.0/10.4ma)
(!!!) (Best RCA Single) 7189 RCA NOS 1960's (51ma)
(!!!!) (BEST RUSSIAN PAIR) 6L6GC=6n3CE Russian NOS 1990 coin/wafer base original boxes (61.5ma and 63ma) (Leben, Fender)
(!!!!) (Best Siemens Pair #2) E81CC=6201=12AT7WA Siemens Munich Germany NOS 1977 (14.2/15.5ma and 13.8/14.2ma) (High Ma and Gm)
(!!!!) (Best Siemens Single) ECC83=12AX7 Siemens Halske Germany branded SONOTONE NOS 1960 (Gm=1900/2200) (1.3/1.7ma)
(!) (Best Single) 12AT6 Sylvania NOS 1960 era (87/60)
(!!!!) (Best Single #2) 12AT7=ECC81 Mullard branded Raytheon NOS 1972 (9.2/9.2ma)
(!!!!) (Best Single) 12AT7=ECC81 Mullard UK NOS 1972 (10.4/10.2ma)
(!!!) (Best Value Single) 12AT7=ECC81 Siemens Halske Germany branded Telefunken NOS 1961 (12.2ma/10ma)
(!!!) (Best Single) 12AT7=ECC81 Siemens Halske Germany branded Telefunken NOS 1961 (8.5ma/9.4ma)
(!!!) (Best Single) 12AT7=ECC81 Siemens Halske Germany branded Telefunken Tektronix Checked NOS 1970 (8.6ma/9.8ma)
(!!!!!) (Good Value Single) 12AU7=ECC82 Mullard UK long plates "O" getter halo used/good 1958 (9.0/8.8ma)
(!!!) (Best Single) 12AU7A RCA clear top NOS 1964 (8.4/8.6ma) (same Gm)
(!!!) (Best Single) 12AU7A Tungsol tall ribbed plates NOS "O" getter halo 1960 era (10.8/11.4ma)
(!!!!!) (Best Single) 12AY7 GE "GRAY BOX PLATES" and "D" getter NOS 1953 (3.3/3.1ma)
(!!!) (Best Single) 12DW7=7247 CBS ribbed plates NOS 1960 (1.3ma/12.5ma)
(!!!!) (Best Single 1944) 6SL7GT Sylvania round black plates NOS 1944 (same build as VT-229) (2.1/2.3ma)
(!!!) (Best Single 1953) 12AX7 GE gray ribbed plates "D" getter 1953 like new (Gm=1600/1600 and 1.1/1.0ma) (1st version)
(!!!) (Best Single 1960) 5751 RCA black plates triple mica "D" getter low hours/tests like new 1960 (2.8ma/3.1ma)
(!!!) (Best Single) ECC83=12AX7 Siemens Halske Germany NOS 1966 (162 Series) (Gm=1500/1600 and 1.0/1.1ma)
(!!!) (Best Single 1967) ECC82=12AU7 Philips Holland NOS 1967 (11.2/10.6ma) (same Gm)
(!!!!) (SINGLE) 12AU7A GE NOS 1976 copper grid posts (9.4/8.8ma)
(!!!!) (Best Single #1) 6C10 GE rebranded RCA NOS 1960's (Ampeg / Fender) (1.3ma/1.3ma/1.0ma)
(!!!!) (BEST SINGLE) 201-A Silvertone Balloon NOS 1930 era (3.8ma and Gm=750)
(!) (Best Single) 2A5 RCA by Sylvania NOS 1947 (89/50)
(!!!) (Best Single #2) E182CC=7119 Mullard SQ Holland NOS large "O" getter halo 1964 (30/34ma)
(!!!!) (Best Single) 420A Western Electric NOS 1977 (2.2/2.3ma) 1-2% section balance
(!!) (Best Single) 47 RCA NOS 1949 (38.2ma Gm=2630)
(!!!!) (Single) 5670W GE JAN NOS 1986 (8.6/8.8ma)
(!!) (GOOD VALUE SINGLE) 5687 Tungsol rebranded IBM bronze plates "U" getter used/good 1959 (29/36ma)
(!!!) (Best Single) 5751 GE 5 Star NOS 1975 (2.4/2.4ma) 1% section balance
(!!!) (Best Single) 5998A Sylvania JAN NOS 1980 (130/134mA)
(!!!) (Best Single) 5998A Sylvania JAN NOS 1980 (135/139mA)
(!!!) (Best Single) 5998A Sylvania JAN NOS 1980 (143/141mA)
(!!!!!) (Best Single for the money) 5U4G CBS D getter like new 1955 (56/40 and 60/40)
(!!!) (Best Single) 5U4GB CBS NOS double "D" getters 1958 (59/40 and 62/40)
(!!!) (Best Single) 5U4GB CBS NOS double "D" getters 1959 (59/40 and 60/40)
(!!!) (Best Single) 5U4GB Hytron NOS "O" getter halo 1960 era (59/40 and 60/40)
(!!!!) (BEST SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (57/40 and 57/40) 1% diode balance
(!!!) (Best RCA Pair) 5V4GA RCA gray plates NOS 1963-1965 slightly tilted glass (60-62/40 and 59-60/40)
(!!!!!) (Single) 5Y3GT Philips Holland NOS 1960's (60/40 and 65/40) (Fender, Supro, Victoria, Decware) (Best Sound for the money)
(!!!!!) (Single) 5Y3GT Philips Holland NOS 1960's (58/40 and 63/40)
(!!!) (Best Single) 6094 Cetron NOS 1972 (Tungsol clone) (61ma) (last series made)
(!) (Best Single) 6100=6C4WA GE Corvair black plate "D" getter 1964 (11ma)
(!!!!) (Single) 6106 Bendix rebranded 5Y3WGTA Heintz & Kaufman NOS (63/40 and 64/40)
(!!) (Best Single) 6AH4GT Sylvania branded Hytron "D" getter NOS 1954 (48ma) (Highest mA and Gm)
6AH4GT Sylvania branded Hytron narrow plate "D" getter 1952 used/good (26ma)
(!!) (BEST SINGLE) 6AS7GA Sylvania metal base NOS 1960's (103/106ma)
(!!) (BEST SINGLE) 6AS7GA Sylvania metal base NOS 1960's (107/111ma)
(!!) (BEST SINGLE) 6AS7GA Sylvania metal base NOS 1960's (84/90ma)
(!) (BEST SINGLE) 6BE6 RCA NOS 1958 (1.3ma Gm=900)
(!) (Best Single) 6BE6 Sylvania branded GE NOS (2.2ma) (Highest mA and Gm)
(!) (BEST SINGLE) 6BE6 TEN Japan NOS 1960's (1.5ma Gm=900)
(!!!) (Best Single) 6BQ7A RCA black plates NOS 1967 (11.5/13.5ma)
(!) (Best Single) 6BR8A RCA NOS 1959 (16.6/10.8ma)
(!) (BEST SINGLE) 6CM7 RCA NOS 1972 (5.2ma and 20ma)
(!!!) (Best Single) 6DJ8 Amperex Bugle Boy Holland like new 1965 (16.8/15.5ma)
(!!!!!) (Best Single) 6DJ8=ECC88 Philips Miniwatt Holland "O" getter 1965 (21/23ma) (Highest mA and Gm)
(Best Overall Single) 6EB8 Sylvania NOS 1960's
(!) (Best Single) 6F6GT GE NOS 1955 (43ma)
(!!) (Best Single) 6K6GT Tungsol NOS 1954 (43ma)
(Best Single) 6GH8A GE branded RCA (16.4/13.5ma)
(!!) (Best Single) 6J5GT Sylvania lightning logo round black plate NOS 1946 (10.4ma)
(!) (Best Single) 6JT8 GE branded RCA NOS (2.1/26.4ma)
(!) (Best Single) 6JT8 GE NOS (1.1/27.2ma)
(!) (Best Single) 6JT8 GE NOS (1.5/23ma)
(!!) (Best Single) 6MJ6 Sylvania branded RCA NOS 1970's (93ma)
(!!!) (Best Single) 6SN7GT Tungsol parallel gray plates NOS 1953 (10.4/9.6ma)
(!!!) (Best Single) 6SN7GT Tungsol parallel gray plates NOS 1953 large "O" mica (10.4/9.2ma)
(!!!) (Best Single) 6SN7GT Tungsol parallel gray plates NOS 1953 burgundy base large "O" mica (9/10ma)
(!!!!) (Best Single) 6SN7GTA GE NOS "U" getter halo - side getter - copper grid posts 1952 (8.8/7.8ma)
(!!!!) (Best Single) 6SN7GTB RCA NOS 1958 side getter (9.6/9.8ma)
(!!!) (Best Single) 6U8A GE Motorola NOS 1977 (15.2ma/9ma)
(!!!) (Best Single) 6V6G GEC UK branded Haltron NOS coated glass NOS 1940's (49ma)
(!!!!) (Best Single) 6X5GT Philips Miniwatt Australia NOS 1940's (53/40 and 53/40)
(!!!) (Best Single) 6X5GT RCA NOS 1946 (55/40 and 60/40)
(!!!) (Single) 6X5GT Sylvania Philco NOS 1945 (53/40 and 56/40)
(!) (Best Single) 6ZY5G Raytheon NOS 1940's (53/40 and 54/40)
(!!) (Best Single) 7AF7 Sylvania branded Hytron NOS round black plates NOS 1952 (9.6/9.4ma) 1-3% section balance
(!!!) (SINGLE) 807=ATS25 GEC England ceramic base NOS 1940's dark gray plate (64.5ma)
(!!!) (Best Single) 8417 Sylvania NOS 1970 era (111ma)
(!!!!) (Best Single) CV378=GZ37 Mullard UK NOS 1966 (53/40 and 54/40)
(!!!!) (Recommended Single) CV378=GZ37 Mullard UK NOS 1967 (52/40 and 54/40) 1-3% section balance
(!!!!) (Best Single) CV4004=12AX7 Mullard box plates NOS 1981 (Gm=1500/1600) (1.1/1.4ma)
(!!!!) (Best Single 1950's) ECC33=6SN7GT Mullard black plates platter getter halo NOS 1950-1955 (10.2/12.2ma)
(!!) (Best Single) ECC808=6KX8 Mullard Made in Germany by VALVO NOS 1969 (2.1/2.2ma)
(!!!!!) (Best Single) ECC82=12AU7 Telefunken Diamond Bottom <> smooth plates NOS 1962 (11.0/11.3ma) 1-2% section balance
(!!!!) (Best Single) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.3/41ma)
(!!!!) (Best Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.6ma)
(!!!!) (Best Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (8.0ma)
(!!!) (BEST SINGLE) EL84 Telefunken Germany <> bottom low hours/like new 1955 (51ma)
(!!!) (Best Single) EZ81=6CA4 RFT East Germany NOS 1970's (49/40 and 49/40)
(!!!) (Best Single) EZ81=6CA4 RFT East Germany NOS 1970's (49/40 and 50/40)
(!!!!) (Best Single) EZ81 GE Mullard Blackburn UK "O" getter NOS 1966 (57/40 and 57/40)
(!!!!) (Best Single) GZ34 Mullard UK branded Mazda NOS 1975 (58/40 and 59/40)
(!!!!) (Best Single) GZ34 Mullard UK branded Mazda NOS 1975 (58/40 and 60/40)
(!!!) (Best Single) JAN-6094 Tungsol NOS 1968 made on Bendix tooling (63ma)
(!!!!) (BEST SINGLE) JAN-6922 Amperex USA globe logo gold pins NOS 1967 (12/15ma)
(!!!) (BEST SINGLE) JAN-6922 Sylvania NOS 1975 (17.6/18.3ma)
(!) (Best Single) JAN-6AH6WA Sylvania NOS 1968 (11ma)
(!!!) (Best Single) JAN-6C4WA GE NOS 1967-1968 (11.8ma)
(!!!!) (Best Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 (66/40 and 68/40) (Best Audio Grade 6X5GT)
(!!!!) (BEST SINGLE) JAN-CEA-5992=6V6GT Bendix NOS 1955 (44ma) (rare)
(!!!) (Best Single) JEA-6094 Bendix used/good 1961 (52ma)
(!!!) (Best Single) JHS-5670 Sylvania NOS 1966 (12/10ma)
(!!) (Best Single) JW-6AK5 Western Electric NOS "D" getter 1953 (6.2ma)
(!!!!!) (Best Single) PCC88=7DJ8 Siemens Germany branded Pope NOS 1979 (14.2/14.5ma)
(!) (Best Single) UV-201-A Radiotron tests like new 1920's some scrapes on base (3.8ma)
(!!) (Best Single) UY-227 RCA Radiotron Balloon tests like new 1930 era (10.2ma)
(!!!) (Best Sound) ECH81=6AJ8 Telefunken Germany <> bottom like new 1960's (6.3ma and 13ma) (highest mA and Gm)
(!!!) (Best Sound) ECH81=6AJ8 Telefunken Germany <> bottom used/good 1969 (5.8ma and 11.2ma)
(!!!!) (Best Holland Pair #1) E80CC=6085 Philips SQ Holland 1967 (6.2/7.0ma and 6.4/7.0ma) 1-2% matched
(!!!) (Best Sounding Pair) 80 Sylvania Philco NOS 1950 (54-60/40 and 58-62/40)
(!!!) (Best Sylvania Pair) 5879 Sylvania NOS 1960's - 1970's (1.6ma and 1.6ma) 1-2% matched
(!!!!!) (Best Sylvania Pair) 6V6GT Sylvania green leaf coated glass NOS 1940's in white boxes (41ma and 44ma) (Same Gm)
(!!!!) (Best Sylvania Pair) 6X5GT Sylvania NOS 1951 (50-53/40 and 52-53/40)
(!!!!) (Best Used Pair) 6550C Winged C by Svetlana Russian used/good 2001 faded top getters (135ma and 140ma) (Gm like new) **
(!!) (Best used single) 12AT7 Telefunken Diamond Bottom used/good early 1960's (9.0ma/9.4ma)
(!!!!) (Best Value 1965) 12AX7 Philips Miniwatt Holland like new 1965 (Gm=1900/1700 and 1.5/1.2ma)
(!!!!!) (Best Value) 45 Tungsol used/good 1940's (27ma)
(!!!!!) (Best Value) 5U4G RCA used/good "D" getter 1951 (48/40 and 52/40)
(!!!!!) (Best Value) 5U4G Zenith by Tungsol low hours/tests like new "D" getter 1950 (53/40 and 57/40)
(Best Value) 5V4G RCA black plates used/very good 1948 (54/40 and 57/40)
(!!) (Best Value) 5Y3GT Raytheon Japan by Hitachi NOS 1960's (57/40 and 62/40)
(Best Value) 6U8A Rogers Canada NOS 1974 (14.8ma triode and 8ma pentode)
(!!!) (Good Value Single) ECL86=6GW8 RCA by Siemens Germany NOS 1963 (1.5ma and 36ma)
(!) (BEST VALUE) ECL86=6GW8 RCA Holland NOS 1970 (0.9ma and 34.5ma)
(BEST VALUE) EM87 Dumont England NOS (4 in stock)
(!!!) (Best Value) JAN-CHY-5Y3WGTA CBS Hytron triple mica D getter like new 1955 (52/40 and 57/40)
(!!!!) (Best Value Like New Pair) 6550C Svetlana Russian low hours/like new 2011 (132ma and 136ma) (strong Gm) **
(!!!) (Best Value Pair) 12AT7=ECC81 RFT East Germany NOS 1970's (10.0/9.6ma and 10.4/9.6ma) 1-2% matched
(!!!) (Best Value Pair) 12AT7WB=6201 GE NOS 1965-1969 (6.0/7.4ma and 6.0/7.2ma)
(!!) (Best Value Pair) 12AU7A RCA MEXICO NOS "TOP GETTER" original boxes 1970's (9.2/11.4ma and 9.4/10.6ma)
(!!!!) (Best Value Pair #1) 12AX7=ECC83 Telefunken Germany <> bottom branded GAP/R Computor tube <> bottom smooth plates used/good 1964 era (0.9/0.8ma and 1.0/0.8ma)
(!!!!) (Best Value Pair) 12AX7=ECC83 Telefunken Germany <> bottom smooth plates used/good 1960's (0.8/0.8ma and 0.8/1.0ma)
(!!!) (Best Value Pair) 12AX7A=ECC83 Raytheon by HITACHI JAPAN NOS 1960's (1.5/1.4ma and 1.6/1.4ma) (High mA and Gm) 1-3 % matched
(!!!!!) (Best Pair #2) 211 GE NOS 1942-1943 (106ma and 108.4ma) (Ongaku, Air Tight, Cary)
(!!!) (Best Value Pair) 26 RCA/Cunningham ST-14 used/good 1940's (3.8ma and 3.8ma)
(!!!) (Best Pair) 26 Super Silvertone ST-14 used/like new 1940's (5.7ma and 6.0ma)
(!!!!) (Best Value Pair) 5842Q Raytheon NOS 1983 (19.2ma and 19.5ma) 1-2% matched
(!!!!) (Best Value Pair) 5842Q Raytheon NOS 1983 (20ma and 21ma)
(!!!!) (Best Value Pair) 5U4GB RCA used/low hours like new 1974 (59-60/40 and 59-61/40)
(!!!!!) (Best Value Pair) 6BQ7A RCA black plates NOS "D" getter 1958-1959 (7.6/9ma and 7/9.6ma)
(!!!!) (Best Value Pair) 6DJ8 Philips ECG USA by Sylvania NOS 1987 (12.8/18.2ma and 13.0/18.4ma)
(!!!) (Best Value PAIR) 6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (11.0/10.4ma and 10.7/11.0ma)
(!!!!) (Best Value Pair) 6J5GT Ken Rad black round plates NOS 1942 (7ma and 7ma)
(!!!!) (Best Value Pair) 6J5GT Raytheon black ribbed plate NOS 1940's tilted bottom mica (8.6ma and 8.2ma) (best value)
(!!!!) (Recommended Pair) 6SN7GTA GE NOS "U" getter halo - side getter - copper grid posts 1952-1953 (6.6/7.8ma and 6.6/8.2ma) (close Gm) 1-3% matched
(!!!!!) (Best Value Pair) 6SN7GTB GE NOS 1964-1965 same build (6.4/7.0ma and 6.6/7.6ma)
(!!!!) (Best Value Pair) 6SN7GTB RCA coin-base NOS 1970-1975 (9.8/7.0ma and 9.0/7.2ma)
(!!!) (Best Value Pair) 807 RCA black plate used/good 1956-1957 getters like new (58.2ma and 56.5ma)
(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (10.5/11.5ma and 10.0/10.4ma)
(!!!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's (12.8/10.6ma and 11.8/11.6ma)
(!!!!) (Best Value Pair) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (0.8/0.9ma and 36.5ma/40ma) 1-5% matched
(!!!) (Best Value Pair) EL86=6CW5 GE UK probably made in Italy NOS 1975 (77ma and 80.5ma)
(!!!!!) (RecommendedPair) JAN-5691 Philips by Sylvania black plates NOS 1984-1985 (2.0/2.2mA and 2.1/2.4mA) (Best 6SL7GT sub) (same internals as 5691 red base) 1-3% matched
(!!!!) (Best Value Quad) EZ81=6CA4 RFT East Germany (Funkwerk) NOS 1970's (1 quad)
(!!) (Best Value Quad) 6SH7 GE metal can NOS 1976 (8.6, 9, 9, 9mA)
(!!!!) (Best Value Single) 10 Sylvania "engraved base" 1930's used/good (23ma)
(!!) (BEST VALUE SINGLE) 12AU7A RCA clear top used/good 1960's (8.0/9.4ma)
(!!!) (Best Value Single) 12AX7=ECC83 FISHER HOLLAND large "O" getter halo 1960 used/good (Gm=1550/1600 and .9/1.0ma)
(!!!!) (Best Value Single) 12AX7 Hitachi Japan branded ITT NOS 1963 (1.0/1.7ma and Gm=1500/1950)
(!!!!) (Best Value Single) 12AX7 Telefunken Germany <> bottom smooth plates branded GAP/R Computor tube like new 1964 (Gm=1700/2000 and 1.1/1.5ma)
(!!!) (Best Value Single) 12AX7 Triotron by Philips Canada NOS 1963 (1.3/1.5ma and Gm=1800/1900)(same sound as Holland)
(!!!) (Best Value Single) 211 GE like new condition 1942-1944 (118ma)
(!!!!) (Best Value Single) 5U4G CBS used/tests like new "D" getter 1950 era (55/40 and 60/40)
(!) (Best Value Single) 5U4G Dumont by Tungsol used/good 1954 (50/40 and 52/40)
(!!!!) (BEST VALUE SINGLE) 5U4G TUNGSOL NOS 1952 slightly tilted glass (52/40 and 52/40)
(!!!!) (BEST VALUE SINGLE) 5U4GB Raytheon "O" getter NOS 1962 (58/40 and 60/40) (2 in stock)
(!!!) (Best Value Single) 6201=12AT7 GE Hewlett Packard NOS 1968 (8.2/9.6ma)
(!!!) (Best Value Single #3) 6267=EF86 RFT East Germany branded Telefunken 1964 (2.4ma)
(!!!) (Best Value Single) 6267=EF86 RFT East Germany branded Telefunken 1964 (2.6ma)
(!!!) (BEST VALUE SINGLE) 6922=E88CC Tungsram Hungary NOS 1979 (12.7/15.6ma)
(!!!) (Best Value Single) 6DJ8 Valvo Germany made in India (Philips Plant) NOS 1973 (18.5/15.6ma) (same internals as Mullard)
(!!!) (Best Value Single) 6SN7GT Tungsol parallel gray plates NOS 1953 large "O" mica (7.0/7.2ma)
(!!!!) (Best Value Single) 6X5GT Philips Miniwatt Australia NOS 1940's (49/40 and 50/40)
(!!!!!) (Best Value Single) CV378=GZ37 Mullard "D" getter NOS 1955 one plate is discolored (57/40 and 57/40) (1st version made with skinny bottle)
(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1961 (12.8/18mA) (PREMIUM 6BL8 SUB) (Tuners)
(!!!) (Best Value Single) E80CF=7643 Valvo Germany branded International NOS 1963 (10.8/13.4mA) (PREMIUM 6BL8 SUB) (Tuners)
(!!!) (Best Value Single) ECC82=12AU7 Philips Holland branded SONOTONE NOS 1960 (10.0/9.2ma)
(!!) (Best Value Pair) ECC83=12AX7 EI Yugo Telefunken NOS smooth plates clone rebranded Amperex and National (1.2/1.2ma and 1.2/1.3ma)
(!!!!) (Best Value Single) ECC83=12AX7 Tungsram Hungary NOS 1980 (Gm=1500/1800) (0.9/1.2ma)
(!!!) (Best Value Single) ECC85=6AQ8 Philips Holland NOS 1975 (10/17ma)
(!!) (Best Value Single) JAN-5687WA Raytheon bronze plates used/tests like new 1969 (41.5/43.5ma) (High Ma and Gm)
(!!!!!) (Best Value Single) JAN-5691 Philips by Sylvania black plates NOS 1985 (2.4/2.6ma) (Best 6SL7GT sub)
(!!!!) (Best Value Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 (63/40 and 66/40) (Best Audio Grade 6X5GT)
(!!!) (Best Value Single) JAN-CKR-6SJ7 Ken Rad NOS 1944 (2.5mA)
(!!!) (Best Value Single) JAN-CKR-6SJ7 Ken Rad NOS 1944 (2.6mA)
(!!!) (BEST VALUE SINGLE) PCC88=7DJ8 RFT East Germany branded Tesla NOS 1980 era (15.2/15.0ma)
(!!!) (BEST VALUE SINGLE) PCC88=7DJ8 RFT East Germany branded Tesla NOS 1980 era (20 in stock)
(!!!!) (BEST XF4 Pair) EL34 Philips Mullard NOS XF4 1979 (91ma and 94ma)
BL42BG=BL42B GE ballast used/good 1940's (155 ohms and 125 ohms)
BP76 (BP 76) ballast used
(!!) (Recommended 27 Balloon) C-327 Cunningham Balloon mesh-plate used/very good 1930's (5.2ma)
(!!) C-327 Cunningham Balloon short mesh-plate used/very good 1930 (5.7ma)
C-335=35 Cunningham Balloon meshplate like new 1930's (39/26)
(!!!) (Best Overall UV-99) C-299=UV-99 Cunningham NOS 1920's with tube data sheet (3.4ma) (highest Ma) (UV have small pins)
C324 Cunningham Balloon used/good 1930's (3.5ma Gm=800)
C324 Cunningham Balloon used/good 1930's (2.8ma Gm=700)
C3M Siemens Germany stamped top NOS 1950's (80/30)
5685=C6J=C6JA Cetron used (1 in stock)
(PAIR) Canton Ergo 21 DC speakers made in Germany good condition (PAIR)
CDD PROJECTION LAMP by GE NOS (100 watts) (8 in stock)
(!!) (~ Best Single ~) CEA-5993 Bendix Rectifier NOS 1950's (54/40 and 54/40)
Ceramic top cap for 310A / 328A / 807 / 837 / VT61 / EY500 (8 in stock) (Made in China)
Ceramic top cap (LARGE SIZE) for 805 / 811A / 812A / 866A/ 872A (7 in stock)
(!!!) (Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.8/1.9ma and 1.8/2.0ma)
(!!!!) (Best Pair) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 test like new faded printing (2.5/2.2ma and 2.4/2.8ma)
(!!!!) (Best Value Single) CK-6072 Raytheon triple mica black plates "O" getter halo 1962 used/good (2.0/2.1ma)
(!) (Microphonic Single) CK-5687 Raytheon black plates "U" getter NOS 1956 (31.5/31.0ma)
(!!!) (Best Single) CK5687WA Raytheon black plates "O" getter like new 1960 (35/38ma)
Weston AC current meter used/good: 0-3 amps
01A National Union NOS 1940's (3.1ma)
JRP-0A2WA Raytheon NOS 1966
0A2WA Raytheon NOS 1962
0A2WA Raytheon NOS 1961
0A2 US Brands used/test like new 1950's-1970's (10 in stock)
0A4G Sylvania NOS (1 in stock)
0A4G Raytheon NOS (3 in stock)
0A5 Sylvania NOS (9 in stock)
0B2 Japan NOS rebranded Amperex Globe Logo Holland 1970's (4 in stock)
0C3A Sylvania used/like new 1970's (single)
(BEST PRICE) 0Z4 US Brands metal can NOS (4 for $12.99)
(DISPLAY TUBE) TS-281 Tungsol Balloon NOS engraved base 1930's (for display purposes only)
(!!) JTL-5687WA Tungsol bronze plates "O" getter used/good 1958 (30/30.5ma)
6112A GE NOS 1956 (.8ma/1.0ma) (1 tube only)
(!!) (Best Value Pair) 6BL7GTA GE NOS and like new 1960's same build (41.5/43ma and 44/46ma) (Highest Ma)
(!!) (Good Value Single) ECF80 VALVO FRANCE (La Radiotechnique) NOS 1962
(!!) (#2 6HM5 Japan Pair) 6HA5=6HM5 Hitachi Japan branded RCA NOS 1970's (12ma and 13ma)
(!!) (Recommended Pair) 6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971-1972 (17ma and 18ma) (Highest mA and Gm)
(!) (Best Value Single) 6L6GC Sylvania NOS 1960's internals tilted (95ma)
(!!) (#1 7551 Pair) 7551 RCA black plate branded Motorola NOS 1970's (48ma and 48.2ma)
(!!) (#3 7551 Pair) 7551 RCA black plate branded Motorola NOS 1970's (44ma and 45ma)
(!) JHS-6X4W Sylvania NOS 1961 (54/40 and 55/40)
(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ "PINCHED WAIST" NOS 1961 (6BL8 substitute)
1007 Raytheon used
100uf/500V, 4uf/500V, 4uf/500V, 200uf/25VDC Cornell NOS 3.5"H x 1.375" dia (DD0685A)
10,000uf @15VDC Mallory cap with screw terminals used (2 in stock) (4.5" H x 2" Dia)
102F WE Tennis Ball display tube - does not work
10BQ5 Tungsol NOS Pair (47ma and 51.5ma)
10EM7 RCA branded GE NOS (3.0/43ma)
10EM7 Sylvania branded GE NOS (1.8/61ma)
80uf/475V, 4/450, 4/450, 4/450 Mallory FP cap NOS 1.375" diameter x 3.5" H (FP460)
80uf/450V, 20uf/450V, 2uf/350V, 25uf/25VDC Mallory NOS 3"H x 1.375" dia (FP427.74)
80uf/400V, 80uf/400VDC Cornell NOS 4"H x 1.375" dia (B0356)
10uf /600VDC Aerovox oil cap used
16A Western Electric Ballast NOS (2 in stock)
124A Western Electric Ballast NOS ballast
1299=3D6 Sylvania used/strong 1940's (90/52)
1299=3D6 Sylvania used/strong 1940's (100/52)
1299=3D6 Sylvania used/good 1940's dirt over printing (80/52)
(!!) (#1 12AT7 France) 12AT7 Philips Miniwatt France NOS 1964 in white box (7.4/7.8ma)
(microphonic single) 12AT7 Philips Miniwatt made in Hamburg, Germany by VALVO NOS "D" getter halo 1959 (8.8/10.2ma)
12AT7WA Raytheon black plates - triple mica - O getter halo 1960's mis-matched triode sections (7/12ma)
(!) 12AU7=ECC82 Brimar tall narrow plates used/good 1960 faded printing (7.8/9.6ma)
12AU7=ECC82 Brimar branded Tronix tall narrow plates used/good 1960 (6.4/7.2ma)
(!!) (Best Value Single 1953) 12AU7 Sylvania black plates "D" getter used/strong 1953 no printing (9.6/11.8ma)
(!) 12AU7 Tungsol gray ribbed plates NOS square or "D" getter halo 1954 in white box (8.2/8.6ma)
(slightly microphonic tube) JRC-12AU7 RCA tall black ribbed plates "D" getter halo tests like new 1950's (9.6/10.4ma)
(!!) 12AU7A RCA CANADA NOS "D" getter halo 1950's tip is chipped (10.0/10.4ma)
12AZ7A GE Zenith gray plates NOS "U" getter halo 1960 (15ma/9.6ma)
12BA6 CBS used/75% (8.6ma)
12BD6 GE NOS 1961
12BD6 US Brands (8 in stock)
12DW4A Amperex Japan NOS 1967 (1 pair)
(!) (PAIR) 12HG7=12GN7A Sylvania branded RCA coated glass NOS (51ma and 52ma)
(!) 12HG7=12GN7A GE USA NOS (71ma and 68ma)
(!) 12HG7=12GN7A GE USA NOS (52ma and 56ma)
(!) 12HG7=12GN7A GE USA NOS (62ma and 66ma)
12HG7=12GN7A GE Japan NOS (1 pair in stock)
(!) (PAIR) 12HG7=12GN7A Sylvania branded RCA coated glass NOS (37ma and 40ma)
(!!) (Recommended Pair) 12HG7=12GN7A Sylvania coated glass NOS 1970 era (52ma and 55ma)
12SA7GT Raytheon used/good (2 in stock)
(!) (RECOMMENDED PAIR) 15EA7=13EM7 GE NOS 1970 era
100uf/500V, 4uf/500V, 4uf/500V, 200uf/25VDC Cornell NOS 3.5"H x 1.375" dia (DD0685)
1619 GE NOS 1960 (56ma)
1631 used/good 1940's (12.6V Filament) (3 in stock)
13L Western Electric Ballast NOS (2 in stock)
18FY6A RCA branded Lafayette NOS (10 in stock)
18GB5=LL504 Raytheon Japan NOS 1960's (5 in stock)
19J6 RCA Victor NOS 1949
19J6 RCA NOS 1960's
1A4=1A4G National Union engraved base used/like new 1930's
1A5G Zenith used/good 1940's
1H5GT RCA Radiotron NOS in RCA Victor box
(BEST PRICE) 1N21B NOS (4 for $9.99)
(BEST PRICE) 1S4 US Brands NOS (4 for $12.99)
1T6 RCA NOS (12 in stock)
10uf /600VDC Industrial Condenser Corp. oil cap used/good
30uf / 600VDC GE oil cap used (1 in stock)
.1uf /10,000VDC Dearborn oil cap used (2 in stock)
(!!) 6146W Sylvania NOS 1970's (105ma)
(!) (Recommended Single) 6L6GC Sylvania NOS 1960's (63.5ma)
80uf/450V, 20uf/450V, 100uf/50V CDE NOS 4"H x 1.375" dia (C1108)
(SINGLE) 2050A GE coin-base NOS (6 in stock) (BEST PRICE)
2050A GE rebranded Amperex NOS (single)
2050W Chatham by Tungsol NOS 1959 (2 in stock)
150uf/300VDC, 100/300, 200/300, 100/25 Sprage Atom Electrolytic Axial Cap NOS (1.375" dia x 4.5" L) (2 in stock)
RK-23 Raytheon 4-Pillar NOS 1940's reboxed
UY-224A RCA Balloon used/very good 1930's (41/25) (2.6ma Gm=900)
UY-224 RCA Balloon used/good 1930's (37/25) (3.0ma Gm=700)
(!) (#1 24A Balloon) 24A BRUNSWICK Balloon used/tests like new, small crack in base (48/25) (3.8ma)
24A National Union ST-shape used/good 1940's (39/25)
24A Sylvania ST-shape engraved base used/very good 1930's (44/25) (2.9ma Gm=800)
10uf/475V, 130/350, 20/350, 10/350 Mallory Canada FP cap NOS 1.375" diameter x 3.5" H (FP454.4)
250uf/200V, 150uf/200V, 150uf/200VDC Mallory pc mount cap NOS (3"H x 1.375" dia) (PFP318.87) (1 in stock)
257A Western Electric printed base NOS 1960
257A Western Electric printed base NOS 1954
25L6 metal can US Brands NOS (3 in stock)
27 National Union engraved base used/good 1930's (4.4ma)
(!!) (Good Value Pair) 272A Western Electric "meshplate" NOS and used/good 1952-1954 (5.2ma and 5.6ma)
(!!!) 286A Western Electric "top printing" NOS 1942-1945 (6.6ma)
(!!!) 286A Western Electric Engraved Base NOS 1930's (6.6ma)
(!!!) 286A Western Electric NOS "top printing" 1942-1945 smaller side getter (7.6ma)
(!!) 286A Western Electric "top printing" NOS 1942-1945 (6.9ma) (Buy two 286A receive 5% discount)
(!!!) 286A Western Electric "top printing" NOS 1942-1945 (7.3ma)
(!!!) 286A Western Electric "top printing" NOS 1942-1945 (6.9ma)
(!!!) (#1 286A) 286A Western Electric "top printing" NOS 1942-1945 (7.0ma)
291A Western Electric NOS 1972 (42/25)
291A Western Electric NOS 1972 (45/25)
2A6 Raytheon engraved base used/good 1930's (33/19)
2C37 Litton USA NOS 1970's (1 in stock)
2D21 United Russian NOS (4 in stock)
AX2D21=2D21 Amperex Holland 1958 (1 in stock)
2E26 RCA used/good (5 in stock)
2E26 used/like new (5 in stock)
2X2A Cetron JAN NOS (4 in stock)
3-14B Amperite Ballast NOS
6-7uf / 1000-5000VDC (estimate) oil caps used/test good (unknown maker)
(!!!) 76 RCA NOS 1940's (4.5ma)
(!!) (Recommended Pair) 30 Sylvania like new - same plates - different shape top mica (2.7ma and 2.9ma)
(!) 30 Philco engraved base NOS 1930's (3.7ma)
80uf/20uf @ 150VDC and 200uf/10VDC Mallory FP NOS (2"H x 1.375" dia) (FP-302.4) (1 in stock)
250uf/165V, 250uf/150V, 20uf/150V, 100uf/50VDC Mallory NOS (3"H x 1.375" dia) (PFP412.01) (3 in stock)
355A Cetron NOS original box 1972
(!!) (Good Value Pair) 311B WE used/good, faded getters 1960 and 1967 (28ma and 33ma)
311B Western Electric used/strong, faded getter 1964 (35.5ma)
(!!!) (Recommended Pair) 311B WE used/good 1960-1961 partially faded getters (24.5ma and 26.5ma)
32 Sylvania engraved base NOS 1930's
32 National Union NOS
328A Western Electric small punch plate used/good 1953 (4.6ma)
329A Western Electric NOS 1976 (1 Pair: 34ma and 37ma)
33GY7A NOS (4 in stock)
34 Tungsol NOS
35 / 51 used/good (4 in stock)
35 / 51 Sylvania NOS (4 in stock)
35B5 used/good (2 in stock)
35HB8 Dumont by GE NOS (5 in stock)
40uf/450V, 10uf/450V, 80uf/250V, 10uf/250VDC Cornell NOS 3.5"H x 1.375" dia (D0870)
35W4 Zenith by Tungsol used/good 1960 (52/40)
375A Western Electric NOS 1956 (28ma)
375A Western Electric NOS 1952 (58ma)
375A Western Electric NOS 1964 (44.2ma)
375A Western Electric NOS 1963 reboxed (55ma)
375A Western Electric NOS/70% 1964 (21ma)
375A Western Electric NOS 1963 glass slightly shifted over on top of base (26.6ma)
375A Western Electric NOS 1963 reboxed (29.8ma)
375A Western Electric NOS 1964 (32ma)
375A Western Electric NOS 1966 glass slightly tilted (29.2ma)
39A Arcturus Blue Balloon used/good tilted top cap 1930's
CE-3-C Cetron Photocell = 3A Western Electric used
($0.99 each) 3A3A/B/C=3AW3 NOS SOLD AS-IS (22 in stock) ($0.99 each min. 10 purchased)
(BEST PRICE) 3AW2 NOS (10 for $19.99)
3B24W Raytheon NOS 1950's (56/40)
3B24W Raytheon NOS 1940's (57/40)
3B24 Western Electric engraved base tests like new 1930's (54/40)
3B24W Raytheon NOS 1950's rebranded National Union 1972 (60/40)
3B24 Westinghouse NOS 1950's (58/40)
(BEST PRICE) 3BE6 NOS (10 for $14.99)
3S4 RCA NOS U getter 1950's (1 pair)
6TF4 Amperite Ballast NOS (2 in stock)
4-125A=4D21 Eimac used sold as-is good filament
4 Pin EF Johnson (123-210-200) NOS for 811A / 572B / 866A / 8020W
GB-407A Sylvania Gold Brand gold pins like new 1960's
407A Sylvania branded RCA gold pins used/good 1971
407A Westinghouse Canada NOS 1960's
407A LM Ericsson Sweden used/good 1960's
70-100uf/450V, 7-10uf/450V, 20-30uf/50V, 15-20uf/50VDC CDE NOS 3"H x 1.375" dia (DD0875A) (3 in stock)
30uf and 5uf @ 350V and 100uf/200V Mallory FP cap NOS (2 in stock)
41 Triad engraved base used/strong 1930's (70/40)
439A Western Electric NOS 1965
44 Sylvania balloon used/good 1940's
(!) 448A Western Electric smooth top used/strong 1966-1970 (1 pair: 37ma and 40.5ma) (Matched on Amplitrex)
(!) 448A Western Electric smooth top used/good 1971 (1 pair: 28ma and 29.4ma) (Matched on Amplitrex)
(!) 448A Western Electric smooth top used/strong 1965-1970 (1 pair: 37ma and 37.5ma) (Matched on Amplitrex)
(!!) (Recommended Pair) 448A Western Electric tipped top used/good 1965 same date codes (26ma and 27.5ma) (close Gm matching)
485 Sparton engraved base used/good 1936 (5.5ma)
485 Sylvania used/good 1930's no printing (7.9ma)
485 National Union used/good 1940's (6.2ma)
485 Sylvania engraved base used/good 1934 (8.3ma)
4BQ7A Raytheon NOS (5 in stock)
(!!!) (Best Balloon 50) 450=50 Sparton Balloon tests like new 1930 era (61.5ma) (High mA and Gm) (rare 50)
50B5 RCA tilted glass NOS (66/45)
50B5 RCA tilted glass NOS (68/45)
551 Arcturus Blue Balloon used/very good 1930's (43/26)
534AX Raytheon NOS (4 in stock)
55 Philco 1940's tests like new (52/24)
56 National Union used/good 1940's (5.3ma)
56 Tungsol rebranded Raytheon tests like new 1940's (6.1ma)
56 GE used/good 1940's (4.2ma)
56 Super Airline used/good 1940's (4.1ma)
56 National Union used/good 1950 small faded getter (4.1ma)
56 RCA no name NOS 1940's made for Radiotelefonica Argentia (5.1ma)
56 no name NOS 1950's (5.7ma)
56 Sylvania branded RCA NOS 1946 (6.0ma)
56 RCA used/good 1940's plate slightly tilted (4.9ma)
56 National Union engraved base used/tests like new 1930's (6.0ma)
56 Philco by Sylvania used/good 1940's (5.2ma)
56 Made in Holland NOS 1940's (5.1ma)
56 RCA used/good 1940's (4.7ma)
56 Ultron UK used/good 1952 (4.5ma)
56 RCA no name NOS 1940's getter halo screen loose at bottom of tube (6.5ma)
56 National Union used/good 1940's (5.9ma)
CK5651 Raytheon NOS 1960's (1 in stock)
(slightly microphonic) 5670 RCA NOS triple mica "O" getter halo 1961 (7.6/10.8ma)
58 Raytheon used/good 1940's (52/36)
(!) 59 Majestic NOS engraved base excellent condition 1930's
JAN-5842 Amperex USA Gold Pins NOS 1980 (18.5ma Gm=20,500)
(!!) 5842 Raytheon branded RCA NOS windmill getter galo 1967 (28ma Gm=25,000)
5879 RCA triple mica "D" getter halo used/tests like new (2.0ma)
6L6GC Sylvania clear top NOS 1960's copper grid posts (68ma)
E90CC Mullard Holland Pinched Waist "D" getter halo 1957 (7.4/7.8ma)
5931 Sylvania triple mica "D" getter used/tests like new 1955 in white box (56/40 and 56/40)
5AS4A GE branded Tungsol "D" getter halo 1960 era (63/40 and 68/40)
5BC3 Sylvania branded GE NOS (1 in stock)
EP96 x 32 NEC CRT NOS
(!) (PAIR) 5BQ7A GE gray plates NOS large "U" getter halo 1961 -1964
(!) 5C22 ITT Electron Tube Division low hours/good condition 1967 some scratches on the base
(BEST SINGLE) 5DJ4 GE NOS 1961 (54/40 and 55/40)
5DJ4 RCA like new 1960's (56/40 and 58/40)
5R4GYB RCA brown base NOS 1970's part of glass melted into bottom mica (50/40 and 53/40)
5U4GB RCA BALDWIN used/good 1962 glass slightly tilted in base (53/40 and 53/40)
(!!) 5Z3G Westinghouse NOS 1957 (59/40 and 61/40)
12-4 Amperite Ballast NOS reboxed
7.07uf / 1000-5000VDC (estimate) oil caps NOS (unknown maker) (single cap)
6012 RCA low hours/test like new 1958 in original boxes (4 in stock)
6080WC GE JAN NOS 1987-1988 broken center guide pin (72/82ma)
(!!!!) (Recommended Pair) 6106 Bendix NOS 1950's rebranded 5Y3WGTA Heintz & Kaufman partially faded printing (66-69/40 x 2 tubes)
6136=6AU6WB GE black plate 1960's branded National NOS (6.6ma)
QE05/40=6146 Adzam France NOS 1960's (80ma)
6146A GE NOS 1965 (69ma)
6146A GE NOS 1960's (82ma)
(slightly microphonic) 6201=12AT7 RCA black plates NOS 1976 (11/12.4ma)
(!) JG-6203 GE used/tests like new 1963 (52/40 and 53/40)
6360 Sylvania Germany NOS 1970's (3 in stock)
6360 Sylvania UK NOS 1970's (1 in stock)
6360 Westinghouse Japan "pinched top" NOS 1970's (3 in stock)
6360 Matsushita Japan "pinched top" NOS 1960's (1 in stock)
(!) JAN-6384 Tungsol NOS 1972 (72ma)
6463 GE 5 Star NOS 1964 (11/12ma)
6463 GE 5 Star NOS 1960 (14/20ma)
GL-6463 GE NOS "U" getter halo 1955 (14/20ma)
6688 GE NOS 1966 (9ma)
6688 GE 5 Star used/good (7.2ma)
6844A National NOS original boxes (nixie tube) (4 in stock)
6910 Sylvania NOS (3 in stock)
6923 Amperex Germany NOS (20 in stock)
(slightly microphonic) 6922 Amperex PQ Holland 1962 low hours/like new (11.2/11.6ma)
6939 NOS (20 in stock)
6N5 Coronado by RCA NOS tuning eye (1 in stock)
6AC7 US Brands (16 in stock) ($4.88 each special price)
6AC7 Sylvania NOS 1950's (11.5ma) (high ma)
6AC7 RCA NOS 1960's (15ma) (high Ma and Gm)
6AC7W RCA used/good (10 in stock)
6AF4 US Brands NOS (14 in stock)
6AF4A Raytheon Japan NOS (3 in stock)
6AG5 used good (20 in stock)
JAN-CG-6AG7Y GE NOS 1965 (32.2ma)
6AG7 GE NOS (6 in stock)
6AH4GT Sylvania rebranded GE low hours/like new 1960's (27ma)
6AH7GT Ken Rad NOS
6AH6 Raytheon NOS 1955 (9ma)
6AJ4 Raytheon NOS
5654=6AK5W=EF95 Radio Technique (RT) France NOS 1962 (5.7ma)
6AS8 US Brands NOS (40 in stock)
(!) (#1 6AU5GT Sylvania Pair) 6AU5GT Sylvania black plates NOS 1970 (63ma and 66.5ma)
(!) (- BEST VALUE) 6AU5GT GE gray plates NOS 1960's (1 pair: 55ma and 56ma)
6AU5GT Raytheon Japan gray plate NOS 1960's (single)
6AU5GT RCA gray plates NOS 1960 (57ma)
6AU5GT RCA gray plates NOS 1960 (66ma)
6AU7 Tungsol branded International NOS (1 in stock)
6AU7 Sylvania branded International NOS (1 in stock)
6AU8A Sylvania NOS (12 in stock)
6AU8A GE NOS (16 in stock)
6AU8A GE Lafayette NOS (5 in stock)
6AU8A Raytheon Toshiba Japan NOS (5 in stock)
6AU8 Sylvania NOS 1960-1965 (18 in stock)
6B4G Sylvania rebranded Delco NOS separate plates 1952 (81ma)
6B4G Sylvania rebranded RCA used/good 1953 (77.5ma)
6BA8A Sylvania rebranded Tungsol NOS (4 in stock)
6BA8A Sylvania rebranded GE NOS (4 in stock)
6BA11 NOS (20 in stock)
6BE3=6BZ3 NOS (16 in stock)
6BG6G Zalytron by RCA used/good 1959 (62ma)
6BG6G RCA NOS 1950's (66ma)
6BG6G NJRT by Tungsol used/good 1955 (95ma)
6BH6 RCA black plate NOS "D" getter halo 1951 (5.1ma)
6BH6 US Brands used/good (20 in stock)
JG-6BH6 GE NOS 1961 (9.4ma)
6BJ8 GE NOS (5 in stock)
6BJ8 RCA NOS (5 in stock)
6BK5 US Brands NOS (20 in stock)
6BM8 Philips Miniwatt by Valvo Germany used 1961
6BN11 US Brands NOS (9 in stock)
(!) 6BQ5 GE used/good 1960's (35.5ma)
6BQ5 GE NOS 1960's (70ma) (recommended for FIXED-BIAS amp only due to high current)
6BQ5 GE NOS 1960's (40ma)
6BQ5 GE NOS/80-85% 1959 (36ma)
6BQ6GTB=6CU6 Sylvania NOS 1960's (25 in stock)
6BS3A NOS (7 in stock)
6BW7 International NOS
6BW4 Sylvania black plates used/good 1954-1955
6BY6 US Brands NOS (40 in stock)
(!!!!!) (2nd Best Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.5/9.6ma and 12.2/9.5ma) (best sound)
6C6 Crosley by Sylvania tests like new 1952 small hairline crack in base (46/31)
6CB6A US Brands NOS (50 in stock)
6CB6A used/good (70 in stock)
6CB6A RCA NOS 1969 (11ma)
6CB6 Super Radiotron Australia NOS 1960's (7.0ma)
6CD6G CBS rebranded Zalytron NOS 1957 (67ma)
6CD6G CBS NOS 1950's (69ma)
6CD6G CBS rebranded Zalytron NOS 1957 (60ma)
6FQ7 Realistic Lifetime Taiwan NOS gold plated pins 1970's
6CM6 US Brands used/good (6 in stock)
6CR6 US Brands NOS (8 in stock)
6CU6 Sylvania black plate NOS (55ma)
6CU8 US Brands (15 in stock)
6CU6 Sylvania black plate NOS (72ma)
6CU6 Sylvania black plate like new condition (54ma)
6CU6 Sylvania gray plate NOS (87ma)
6DA4A Sylvania black base NOS 1970 era (95/60)
EM81 Teonex Russian made NOS 1960's (3 in stock)
(!) CV5358=6DJ8 Mullard UK used/good 1968 (14.6/17ma)
6DQ6A Super Radiotron Australia NOS (69ma)
6BQ6B Philco by Sylvania low hours/tests like new - broken center guide pin (70ma)
6DQ6B JAPAN NOS 1960's (64.5ma)
6DQ6B Sylvania branded RCA NOS (54ma)
6DQ6B Curtis Mathes hi-fi JAPAN used/good 1960's (60.5ma)
6DQ6B GE branded Amperex NOS/77% 1970 (58ma)
6DR7 Sylvania branded GE black plates NOS 1977 (4.6ma/25ma)
6DR7 Raytheon black plates NOS around 1960 (1.2ma/40ma)
6DX4 Westinghouse NOS 1966
6DV4 GE nuvistor NOS (5 in stock)
6EH4A NOS (12 in stock)
EF183=6EH7 Amperex Holland 1959 "D" getter halo (12ma)
6EH7=EF183 RCA Canada NOS (5 in stock)
6EH7=EF183 GE NOS ( 5 in stock)
6EA7 GE black base rebranded Zenith 1960 used/good (3.6ma/35ma)
6EM7 RCA coin-base black plates NOS 1970's broken guide pin (2.4ma/50ma)
6EM7 RCA coin-base black plates used/good 1970's (2.6ma/63ma)
6EM7 RCA coin-base used (2.5ma/28ma)
6EW7 Daystrom by RCA BIG BOTTLE used/70-80% 1960's (4.5/32ma)
6EZ8 NOS (6 in stock)
6FG7 US Brands NOS (6 in stock)
6FH8 US Brands NOS (7 in stock)
6FV8=6BR8A US Brands NOS (30 in stock)
6FW5 GE rebranded branded RCA NOS (53ma)
6GA7 GE branded Raytheon NOS (4 in stock)
6GB3A Raytheon NOS (6 in stock)
6GJ5A RCA branded GE NOS 1965 (98ma)
6GJ7=ECF801 Sylvania made in JAPAN NOS (2 in stock)
6GJ7=ECF801 Siemens branded RCA NOS
6GQ7 US Brands NOS (18 in stock)
6GT5A Sylvania branded GE tipped top NOS 1960's (78ma, Gm=7700)
6GT5A RCA used/good 1960's (60ma)
JAN-CAHG-6H6WGT Chatham NOS 1959
6JA5 NOS (8 in stock)
6JB5=6HE5 NOS (4 in stock)
6JB6 Sylvania branded RCA NOS 1970's (65ma)
6JC5 Sylvania NOS (2 in stock)
6JC8 NOS (12 in stock)
6JC6A Sylvania branded RCA NOS 1970's (11.2ma)
6JC6A Sylvania used/good 1970's (9ma)
6JC6A GE used/like new 1960's (10.5ma)
6JG5 GE NOS (13 in stock)
6JL8 Raytheon NOS (1 in stock)
6JS6A Sylvania NOS (114ma)
6JS6C Sylvania used/good (80ma)
6JT6A Sylvania tipped top NOS (59ma)
6JU8A US Brands NOS (30 in stock)
6JZ8 US Brands NOS (8 in stock)
6JZ6 IEC Japan used (44ma)
6KA8 NOS (40 in stock)
6K8MG International NOS in tall metal can (2 in stock)
6K8 metal used/good (4 in stock)
6K8G Ken Rad tests like new 1940's (42/25 and 54/30)
(Best Single) 6K8G RCA NOS 1950 (52/25 and 60/30) strongest output
6KL8 RCA NOS (1 in stock)
6KS6=6BN6 NOS (10 in stock)
6KV8 US Brands NOS (22 in stock)
6KY8A RCA NOS (3 in stock)
6KY8A Sylvania tipped-top NOS (3 in stock)
6KY8A GE NOS (8 in stock)
6L6GB Sylvania Black Plate used/good 1955 faded top getter (57ma)
6L6GB Sylvania Black Plate used/good 1955 faded top getter (65ma) (high Ma and Gm)
6L6GC Sylvania gray plate used/tests like new 1960's (66ma)
6LM8 Raytheon JAPAN NOS (20 in stock)
6MA6 US Brands NOS (5 in stock)
6MD8 US Brands NOS (6 in stock)
6N6G Tungsol coated glass NOS 1940's (39ma)
6N6G Raytheon by Sylvania NOS 1948 (48.8ma)
6N6G Philco by Sylvania NOS 1940's (41ma)
6N6G Raytheon used/good
6Q7GT Sylvania NOS 1947 hairline crack in base (30/20)
6Q7GT Coronado 1940's tests like new (39/20)
6R7 Sylvania metal used/like new 1940's (88/48)
6R7GT RCA NOS 1940's (2 in stock)
6R7GT Haltron England 1940's tests like new (85/48) strong single
5U8 US Brands NOS (50 in stock)
6SK7 Ken Rad NOS 1943 (9.6ma)
(slightly microphonic) 6SN7GTA GE NOS 1952 copper grid posts (7.4/10ma)
6SZ7 RCA NOS
6T9 GE branded RCA NOS original boxes (3 in stock)
6V7G Sylvania NOS 1940's reboxed
(BEST PRICE) 6U6GT US Brands NOS (10 for $24.99)
(!!) 6U8A Westinghouse NOS 1967 (17.8ma and 9.5ma)
8uf / 1000VDC GE oil cap used (1 in stock)
40uf/370VAC=600VDC ASC spearinol oil caps NEW from 1999 4.75"H x 2.25" dia (4 in stock)
6V6 Sylvania metal can NOS 1960's (35ma)
6V6GT MWT Italy coated glass NOS 1940's (42ma)
6V6GT GE black round plate used/good 1953 hairline crack in base (35ma)
6V6GT RCA BROWN BASE - gray coated glass - used 1951 (35ma)
6V6GT Sylvania coated glass used/good 1953 (38.2ma)
6V6GT Sylvania chrome top black plate coated glass NOS 1953-1954 (43ma)
6W4GT GE NOS 1958 (2 in stock)
6W4GT CBS NOS 1950's (4 in stock)
6W4GT Channel Master Japan by Hitachi NOS "D" getter halo 1950's (7 in stock)
6W4GT Sylvania NOS "D" getter halo 1958 (1 in stock)
6W4GT Raytheon NOS (4 in stock)
6W4GTA GE NOS (3 in stock)
6W4GT Westinghouse Canada 1959 NOS (4 in stock)
6W4GT Amperex Bugle Boy made in Canada NOS 1964 (1 in stock)
(!) (#1 6W4GT Japan Pair) 6W4GT Silvertone Japan black plate "D" getter halo NOS 1956
6W4GT Sylvania NOS (8 in stock)
6X4 National Union "D" getter halo tests like new 1955 (56/40 and 58/40)
6Y6G Westinghouse coated glass NOS 1940's (50ma) (tested on amplitrex)
6Y6G National Union coated glass used/good/75% 1952 (46ma) tested on amplitrex
JAN-CRC-6Y6G=VT-168A RCA coated glass used/good/70% early 1940's (42.5ma) tested on amplitrex
6Y6G GE used/good/75% 1958 (46ma) tested on amplitrex (high Gm)
6Y6GT GE NOS 1960's (85ma)
6Y6GT RCA NOS 1964 (66ma)
6Y9=EFL200 GE NOS
(!) (Best Single) 6ZY5G Philco NOS 1940's (53/40 and 54/40)
7 pin CINCH EBY TSE7T102 ceramic chassis mount with bayonet shield and center ground post used/clean condition (9 in stock)
4X150A=RCA NOS 1970 sold as-is
7036 NOS
7189 Amperex Japan NOS misbranded 7189A NOS 1970 (48.5ma)
JAN-7815 GE Planar Triode (2C39 format) used/pull-outs sold AS-IS (15 in stock)
7377/QQE04-5 Amperex Holland NOS Dual Transmitting UHF Tetrode (10 in stock)
(!!) (#1 7551 Pair) 7551 RCA black plate branded Motorola NOS 1970's (45.2ma and 46ma)
7551 RCA black plate branded Motorola NOS 1970's (20 in stock)
7587 US Brands NOS (10 in stock)
450pf / 7500VDC Dolinko & Wilkens vacuum cap VC450-7.5 (6 in stock)
250pf / 60 / 35 United Electronics vacuum cap (single)
76 Aristocrat by Sylvania 1940's used/good (3.8ma)
76 Croydon by Sylvania engraved base used 1930's (4.5ma) (Gm is 60%)
76 Delco by RCA 1940's used/good (4.1ma)
(!!!!) 76 RCA Cunningham used/good 1930's (4.8ma)
E80CF Telefunken Germany <> bottom NOS Gold Pins rebranded Siemens 1970-1971 (6BL8 sub)
6GF5 GE NOS (15 in stock)
7A4=XXL National Union NOS
7A7 Philco 1951 used/strong (68/44)
7AU7 GE NOS (6 in stock)
7AU7 RCA clear top NOS pin #2 slightly shorter than the other pins (1 in stock)
7AU7 Tungsol "U" getter NOS (1 in stock)
7AU7 RCA black plates "D" getter NOS 1955 (1 in stock)
7AU7 Tungsol "O" getter NOS 1960's (1 in stock)
7C5 Sylvania branded RCA coated glass faded printing used/good 1940's (51ma)
7C5 Sylvania used 1951 (41.5ma)
7F8W Sylvania NOS rebranded United 1952 (42/25 and 44/25) (best 7F8W)
7H7=VT-190 GE used/good (2 in stock)
7K7 US Brands NOS (6 in stock)
7Q7 Delco by Sylvania used/good 1950's (90/57)
7Q7 Tungsol by Sylvania used/good 1950's (95/57)
7Q7 Canada used/good 1950's (85/57)
7S7=7J7 Mullard England NOS (4 in stock)
7Y4 used/good (2 in stock)
7V7 Various US Brands NOS (27 in stock)
9-4D Amperite Ballast NOS (7 in stock)
80 Tungsol like new, 1 internal plate slightly tilted (51/40 and 52/40)
(!!) (#2 800 gray plate) 800=VT-64 RCA gray plate NOS late 1940's (47.5ma, Gm=2150) (tested on Amplitrex)
800=VT-64 RCA DeForest black plate engraved base used/good 1930's (38ma, Gm=1750) (tested on Amplitrex)
800=VT-64 RCA Radiotron charcoal black plate engraved base used 1930's (42ma, Gm=2000)
800=VT-64 RCA Lab Development tube charcoal black plate used/good 1940 era (42ma, Gm=2150)
(!) (#1 802 Pair) 802 RCA Deforest NOS original boxes 1943
8020 Amperex 1940's low hours/test like new (4 in stock)
8025 RCA used/like new 1940's
NL-8037=5031 National NIXIE NOS in plastic bag
(!) (Recommended Single) 8068 GE Hewlett Packard NOS 1968 (42ma)
8068 GE low hours/test like new 1960's (42.2ma)
(!) 807 made in England rebranded SICTE South America NOS gray plate 1970's (66.5ma)
(!) 807 made in England rebranded SICTE South America NOS gray plate 1970's (75ma)
30uf/350, 30/350, 50/300, 100/75 Cornell Dubilier FP cap NOS (2 in stock)
20uf/450V, 20/450, 20/25, 15/25 Sangamo FP cap NOS 2"H x 1.375"
81 ST-16 Sylvania NOS 1940's top mica tilted, 1 small glass chip inside tube (56/40)
828 RCA used/very good 1957 original box
837 used/test good
(DISPLAY TUBE - DOES NOT WORK) 838 RCA Radiotron around 1940 (DISPLAY TUBE WITH OPEN FILAMENT)
8447 Tungsol Motorola NOS
8448 Tungsol Motorola NOS
8463 Amperex by Mullard NOS (2 in stock)
85A2=0G3 Amperex Holland used/good 1960's (8 in stock)
89 US Brands used/good (2 in stock)
8965 Eimac loose as-is
9 pin brown bakelite PC mount NOS (2 in stock)
9 pin ceramic pc mount socket with gold-plated pins (10 in stock)
9 pin ceramic TOP chassis mount socket with mounting bracket (1 in stock)
9 pin ceramic pc mount socket with standard pins (13 in stock)
9005 RCA NOS 1940's
917 RCA used/like new 1950
919 RCA used/like new 1951
922 Photocell Cartridge Type NOS (5 in stock)
931VA RCA NOS
931A NOS (4 in stock)
935 RCA NOS (1 in stock)
954 RCA acorn NOS 1940's (2 in stock)
991 used/good
AF7 Miniwatt used/good 1930's
20A5 (20 A5) Amperite Ballast Regulator like new (2 pins)
100-77 Zenith Ballast used
1B1 Duresite Ballast used
12AZ7 GE black plates "D" getter halo NOS 1955 (11ma/7.5ma)
(!) (slightly microphonic) 5751 Sylvania rebranded RCA black plates triple mica "D" getter used/good 1950's (2.0ma/2.2ma)
(!!) (#1 800 black plate single) 800=VT-64 RCA black plate like new 1940's (52ma, Gm=2430) (tested on Amplitrex)
(!!!) (Best Pair #2) JG-6021A GE NOS 1956-1957 "D" getter (5/6ma and 5.6/6.1ma) (mil-grade)
EL34 Philips Miniwatt Holland brown base used/good double "D" getters 1959 (70ma)
(!) (#1 Type 30 single) 30 RCA Victor NOS 1940's original box (4.3ma)
(!!!) (BEST PAIR) 5998A Sylvania JAN NOS 1980 (122/127ma and 123/126ma) (5998A=7236)
C3M Valvo branded Philips NOS early 1960's (20ma)
6EJ7 Zaerix East German NOS 1970's (12ma) strong single
(!!!) (Best Single) 5998A Sylvania JAN NOS 1980 (141/137mA)
EC88 Siemens Germany gold pins NOS 1965 (14ma)
(slightly microphonic tube) 12AT7WA=CV455 Mullard NOS "curved D getter halo" copper grid posts 1959 perfect printing (8/9ma)
(!) JG-12AT7WA=6201 GE NOS gray plates 1963-1964 (7ma/7.2ma)
(!!!!) (Best Value used) ECC83=12AX7 Fisher Mullard ribbed plates used/good 1964 copper grid posts (.7/.8mA Gm=1400/1500)
C3M Valvo branded Philips NOS early 1960's (24ma)
7A WE NOS Phototube in original WE box for 35MM Projector (getter halo cup is loose at bottom of tube)
JAN-CRP-5755 Raytheon NOS 1966 in 1973 box (1.5/2.0ma)
6BC7 Sylvania rebranded Dumont NOS 1960's (3 in stock)
(!!) CV4024=12AT7WA=12AT7 Brimar UK NOS square black plates 1962 (8.6/13.6ma)
(!!) CV4024=12AT7WA Brimar NOS square black plates 1973 (11.2/17ma) (high Ma and Gm)
Deforest Audion metal base display tube 1920's (single)
866Jr Taylor Balloon 1930's (display tube, does not function)
(display tube) UV-99 Unknown maker - does not work
(Display Tube) KT66 GEC 1960's (WEAK TUBE: LOW Ma and LOW GM) - for display purposes only
(display tube) UV-99 Radiotron brass base 1920's tarnished base - lights up
(DISPLAY TUBE) 480 Deforest Audio Balloon shape glass 1930's (for display purposes only - does not work)
DY86 Valvo NOS
E130L=7534 Valvo branded Telefunken used/60% 1962 (58ma)
7643 Valvo branded Amperex PQ Germany "PINCHED WAIST" NOS 1960 (6BL8 sub)
(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ "PINCHED WAIST" NOS 1962 (6BL8 substitute)
12AT7=E81CC=6201 Siemens triple mica NOS 1971 (12/15.8ma)
E81L=6686 Valvo, Hamburg, Germany branded RCA NOS 1971 (2 in stock)
E83F=6689 Amperex Holland NOS gold pins 1962 (9.2ma)
E83F=6689 Philips Holland NOS 1974 (10.4ma)
E83F=6689 Siemens made in Holland NOS 1966 (8.5ma)
E88C Siemens Halske rebranded RCA Germany NOS 1968 (11.5ma)
EC88 Amperex Bugle Boy Italy NOS 1966 (12.8ma)
E88CC=6922 Siemens Halske Germany "gray shield" Gold Pins used/good 1963 (10.6/12.2ma)
E90CC Philips Miniwatt SQ Holland Pinched Waist "D" getter halo 1957 (7.4/7.8ma)
EBC41 Philips by La Radiotechnique Chartres France NOS 1968 (6 in stock)
EC88=6DL4 United France NOS 1981-1982 (2 single tubes)
E88C=6DL4=6522 Siemens Germany NOS 1978 (12ma)
E88C Siemens Halske NOS 1967 (17.5ma)
ECC34 Mullard NOS 1950's (9ma/10ma)
ECC808=6KX8 Mullard Made in Germany by VALVO NOS 1969 same date codes 1-2% matched (matched on Amplitrex)
ECC808=6KX8 Mullard Made in Germany by VALVO NOS 1969 same date codes 1-2% matched (matched on Amplitrex)
ECC84=6CW7 Mullard International NOS 1960 (8.8/12.2ma)
(!) (#1 6CW7 Best Single) ECC84=6CW7 Mullard branded Philips Miniwatt Holland 1962 (10.6/11.0ma)
ECC84=6CW7 Siemens Germany Sonotone NOS 1959 (11.2/13.8ma)
ECF83 Telefunken rebranded International 1960's (3 in stock)
ECH3 Tungsram used/good 1940 era
ECH81=6AJ8 Valvo Germany like new 1960 (6.3ma and 10.6ma)
EF183=6EH7 Amperex Bugle Boy Holland 1960 "D" getter halo (11.5ma)
EF183=6EH7 Siemens branded Telefunken NOS 1963 (15ma)
EF804 Telefunken NOS made in Berlin 1957 (3.5ma)
EF86 International Russian NOS 1979 (3.7ma)
EL34 GE Holland brown base used/55% 1961 (51ma)
(!) (BEST VALUE PAIR) EL84 Brimar England NOS 1962 (67ma and 66ma) (recommended for FIXED-BIAS amp only due to high current)
EL84 Philips Holland NOS 1970 (42ma)
EL84 Siemens Halske Germany used/70% 1969 (34.5ma)
EM81 Telefunken Germany <> bottom used/very good in white box 1970
EM84=6FGG Toyo Japan like new 1960's
EMM801 Telefunken NOS 1961
(!) (#2 24 Balloon) 124 Crosley by Arcturus Balloon used/tests like new 1930's (48/25) (3.0ma)
51 Arcturus Blue Balloon used/very good 1930's (46/26)
EY51 Valvo West Germany NOS
GB-407A Sylvania Lenkurt Gold Brand gold pins used/like new 1960's
407A Sylvania gold pins used/good 1960's
(!) JG-12AT7WA=6201 GE black plates triple mica "U" getter used/strong 1955 (10ma/15ma)
0A2WA RCA NOS 1956-1971 (10 in stock)
0A3 Westinghouse NOS 1940's - 1950's small crack in base (neon)
0A3 US Brands used/good (4 in stock)
(slightly microphonic - good value) 5687 Raytheon black plates NOS "square" getter halo 1950's (37/39ma) (strong Ma and Gm)
JAN-5842 Amperex Globe Logo USA Gold Pins "D" getter halo low hours/like new 1969 (21.5ma and Gm=20,500)
JAN-5842 Amperex USA Nickel Pins NOS 1983 (20.2ma Gm=20,800)
JAN-5842 Amperex USA Nickel Pins NOS 1983 (30ma and Gm=27,000)
JAN-5847A=404A Amperex USA like new 1988 (1 pair)
JAN-5847A=404A Amperex USA used/good 1988 (1 pair)
(!) (- Best Value) JAN-5847A=404A Amperex USA NOS 1988 (23ma and 24ma)
JAN-5847A=404A Amperex USA like new 1988 (1 pair)
JAN-CAHG-6H6WGT Chatham like new 1956
1619 Ken Rad NOS 1940's also stamped 1953 (56ma)
6Y6G Arcturus by Tungsol coated glass used/good/70% 1940's (43ma) tested on amplitrex
2K25 Hytron USA NOS original box 1950's
JAN-CRP-705A Raytheon like new 1940's (single)
(Best Single) JAN-CW-705A WE NOS original box 1944
12AT7WA=6201 GE NOS gray plates 1965 (7.8ma/10.6ma)
(!) JHS-6186=6AG5WA Sylvania NOS 1965 (9.7ma)
(!) 12AT7 RCA black plates NOS D getter halo 1950's, slightly microphonic (13/16.4ma) (high Ma and Gm)
(!) JTL-12AU7 Tungsol narrow plates "D" getter NOS 1955 bottom mica is tilted (10.4/10.6ma)
KT8 GEC England NOS 1950's (76ma)
(!!) ER-224A Eveready Raytheon Balloon used/tests very good 1930's (45/25) (4.1ma) (highest Ma)
(!) (Recommended Pair) 0B2 GE Italy made in Japan NOS 1970's (argon gas)
(!!) (Single) 6201=12AT7WA GE "5 STAR" NOS 1970 (6.0/7.4ma)
RL12P35 Telefunken Germany Wehrmacht NOS 1944 (118ma) (tested on Amplitrex)
RL12P35 Telefunken Germany Wehrmacht NOS 1944 (120ma) (tested on Amplitrex)
(!!!) (slightly microphonic) 6922=E88CC Tesla Czech Republic NOS 1970 (22/21ma)
(slightly microphonic tube) ECC81=12AT7 Mullard NOS "curved D getter halo" copper grid posts 1955 (9.2/10.6ma)
(slightly microphonic tube) 12AU7 RCA tall black ribbed plates "D" getter halo tests like new 1950's (9.4/10.0ma)
(slightly microphonic tube) 12AU7A RCA tall black ribbed plates "D" getter halo used/good 1950's (8.2/8.8ma)
TUF-20 Taylor NOS brown base NOS
UL84=45B5 RSD East Germany NOS
5879 RCA triple mica "D" getter halo used/tests like new (1.7ma)
(!) 244A Western Electric NOS 1952 smaller side getter (4.4ma)
(Display tube) UV-201 Volutron brass base - does not work - in good condition - 1920's
(DISPLAY TUBES) 80 Balloon shape glass 1930's (for display purposes only - do not work)
(!!) (#1 81 Balloon) 81 Arcturus Balloon used/tests like new engraved base 1930's like new condition (53/40)
81 ST-19 RCA Radiotron engraved base 1939, tests like new, loose glue particles inside base (good value) (53/40)
(Display Tube) KT66 GEC 1971 purple gas - for display purposes only
(!!!) (Slightly Microphonic Single) CV1985=6SL7GTY Brimar UK tests like new 1950's (2.2/2.2ma)
(!!) (Good Value Single) CV378=GZ37 Mullard "D" getter used/tests like new 1955 (55/40 and 55/40)
(!!!!) (Best Pair 1966) CV378=GZ37 Mullard NOS 1966 (51-51/40 x 2 tubes) 1% matched
(!!!!) (Recommended Pair) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.6/9.4ma and 9.8/9.6ma) 1-3% matched (same Gm)
(!!!!) (Recommended Pair) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.8/11ma and 10/10.9ma) 1-2% matched
(!!!!) (Best Pair) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (10.2/11.2ma and 10.4/11.2ma) 1-2% matched
(!!!) (Best Value Single) CV4003=M8136=12AU7 Mullard UK NOS large "O" getter halo 1962 dirt was over entire tube (10.6/11.0ma)
(!) (slightly microphonic single) CV4004=12AX7 Mullard NOS 1981 (1.3/2.1ma)
(!!!!) (2nd Best Pair) CV4004=12AX7 Mullard NOS 1981 (0.9/0.9ma and 0.9/1.0ma)
CV4007=6AL5 Brimar UK NOS (48/40 and 48/40)
CV4009=6BA6W=5749 Brimar UK NOS 1969 (9.5ma)
(!!) CV4024=12AT7WA Brimar NOS square black plates 1968 partially faded printing (7.8/10.4ma)
(!!) CV4024=12AT7WA Brimar NOS square black plates 1975 (9.6/14.4ma)
(!!) CV4024=12AT7WA Brimar NOS square black plates 1976 (7.6/8.2ma)
(!!!!) (Best Overall Single) CV4024=12AT7WA Brimar NOS square black plates 1966 (11.2./11.4ma)
CV4069=12AU7 Brimar UK NOS with flying leads (no pins)
(!!) (1 Pair) CV4069=13D3 Brimar UK NOS 1969 era with flying leads (no pins) (matched on TV-7D/U)
(!!!!) (Best Siemens Single) CV492=ECC83=12AX7 Siemens Halske NOS 1968 (1.2/1.5ma) (Gm=1800/1900) (phono, mic, preamp)
(!) CX-112A RCA Cunningham Balloon engraved base used/good 1930 era (6.2ma)
(!) CX-112A RCA Cunningham Balloon ribbed plate engraved base like new 1930 era (9ma)
CX-12 Cunningham NOS original box 1930's (1 in stock)
CX-12 Cunningham NOS original box 1930's (1 in stock)
(!!!!) (Good Value Single) CX-301-A Cunningham used/good 1928 (2.6ma Gm=700)
(!!!) CX-301-A Cunningham NOS 1930 era (2.6ma Gm=800)
(!!!!) (Good Value Pair) CX-301-A Cunningham used/good 1930 era (2.0ma and 2.0ma)
(!!!!) (Best Pair) CX-301A Cunningham and UX-201A RCA Balloon NOS 1930 era (3.1ma and 3.5ma)
(!!!) (Recommended Pair) CX-326 Cunningham balloon used/good 1930 era (5.0ma and 5.2ma)
CX-345 Cunningham Balloon used/52-55% Ma and Gm 1930 era good condition (19ma)
(!!!) CX-380 Cunningham Balloon used/65% 1930 era some white oxide flakes inside tube (39/40 and 44/40)
40uf/450V, 10uf/450V, 35uf/350V, 10uf/350VDC CDE NOS 3"H x 1.375" dia (D0910) (1 in stock)
30/30uf @ 350VDC / 50uf @ 300VDC / 100uf/75VDC Cornell FP cap NOS (2 in stock) (1.375" Dia x 3" tall) (D0788.7)
35uf/450V, 25uf/450V, 20uf/200V, 100uf/50VDC Cornell NOS 3.5"H x 1.375" dia (D0820)
40/475V, 10/475V, 4/500V, 40/300VDC Cornell Dubilier FP cap NOS (D0842) (2 sections 475 volts)
40uf/475VDC, 40uf/250VDC, 50/uf150VDC, 80uf/50VDC CDE FP cap NOS (D1004) (1 in stock)
DAF96=1AH5 Amperex by Valvo Germany NOS 1960's (4 in stock)
80-100uf/350VDC, 2 sections @ 300-500uf/50VDC and 1 section 200-300uf/50VDC Cornell CDE FP NOS 3.625"H x 1.75" dia (DD0696A) (2 in stock)
20-30uf/500V, 80-130/350, 7-10/350, 7-10/350V Cornell Gold Can FP cap NOS (3.75" H x 1.375" Dia) (3 sections 350VDC)
Deforest Audion Isolantite base display tube (single)
DH Labs Silver Sonic Q-10 speaker cables spade to spade 4 ft. (used/good)
DH Labs Silver Sonic Q-10 speaker cables spades to banana plugs 4 ft. (used/good)
(DISPLAY) 242 Duovac USA brass base 1930's used but has high current will not run stable in amp - sold as display tube only
(!) (Display Tube) 101F Western Electric Tennis Ball engraved base 1930 era (no emission/filament lights) (DISPLAY TUBE)
(DISPLAY TUBE) 274A Western Electric 1966 open filament - doesn't work (display tube only)
(DISPLAY TUBE) 350B Western Electric used 1967 (display tube - defective)
(DISPLAY TUBE) 4242A=242A=CV25 STC England broken filament - display tube only
(DISPLAY TUBE) UV-201-A Radiotron "brass base and tipped" 1920's lights up nicely but no emission (display tube)
(Display tube) UV-201A Radiotron brass base 1920's (does not work)
(display tube) UV-99 Radiotron brass base 1920's - lights up but does not have emission
DK96=1AB6 Mullard UK NOS in International boxes 1960's (3 in stock)
(Best Single) E130L=7534 Amperex by Valvo Germany NOS 1962 in Amperex box (102ma)
E130L=7534 Valvo branded Telefunken used/55% 1962 (53ma)
(!!) E180CC=7062 Philips Miniwatt IBM Holland low hours/tests good O getter halo 1961 (6.0/6.2ma)
(!) (microphonic single tube) E182CC=7119 Philips SQ Holland NOS "O" getter halo 1963 (39.0ma/39.2ma)
(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1970 (36.0/37.6ma)
(!!) (Best Pair) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1970 (33.2/33.0ma and 33.3/32.5ma) 1-3% matched
(!) (Single) E288CC=8223 Siemens Halske Germany NOS 1974 (36/35ma)
(!!!) (Recommended Pair) E80CC=6085 Heitz and Kaufman NOS and Philips Miniwatt SQ Holland like new 1970 (6.2/6.8ma and 7.2/7.7ma)
(!!!) (Recommended Pair) E80CC=6085 ITT NOS and Philips Miniwatt SQ Holland like new 1970-1973 (6.8/8.0ma and 7.9/8.0ma) (Highest mA and Gm)
(!!!!) (Best Single) E80CC=6085 Philips Holland SQ gold pins NOS 1967 (6.4/7.0ma) (same Gm)
(!!!) (Recommended Single) E80CC=6085 Philips SQ Holland NOS 1967 (5.8ma/6.9ma) (close Gm)
(!!!!) (Best Sounding Holland Pair) E80CC=6085 Philips SQ Holland 1967 (5.7/6.8ma and 5.7/6.9ma) 1-2% matched
E80CF=7643 Philips Miniwatt SQ Germany "PINCHED WAIST" used/good 1961 (11.4/10.4mA) (6BL8 sub)
(!!!) (Best Single) E80CF=7643 Valvo branded Amperex Germany PQ NOS 1961 (Premium 6BL8 SUB) (Highest mA and Gm)
(!!!) (Best Value Pair) E80CF=7643 Valvo Germany branded International NOS 1961-1963 (PREMIUM 6BL8 SUB) (Tuners) 1-5% matched
E80CF=7643 Valvo Germany branded Philips 1970 (10.5/14.2ma)
(!!!) (Best Overall Single) E80F=6084 Miniwatt SQ Holland Special Quality Gold Pins "D" getter NOS 1960 (3.2ma)
E80F=6084 Philips by Mullard UK SQ NOS gold pins 1972 (2.7ma)
(!!) (Best Pinched Waist 1956) E80F=6084 Philips Miniwatt Holland NOS Rugged Reliable Long-Life "Pinched Waist" with "D" getter halo 1956 (3.1ma)
E80L=6227 Amperex PQ Holland NOS Gold Pins (12 in stock)
6227=E80L Westinghouse Holland NOS Gold Pins 1960's (3 in stock)
(!!!) (Good Value) E81CC=12AT7 Haltron England NOS around 1960 (8.4/10.2ma)
(!) 12AT7=E81CC RTC Radio Technique France NOS 1971 (7.8/8.0ma)
(!!!) (Single) E81CC=12AT7WA Siemens Munich Germany NOS 1975 (10.8/9.3ma)
(!) E81L=6686 Philips SQ made By Valvo, Hamburg, Germany NOS 1971 (16.6 and 17.4ma)
(!!!) (BEST SINGLE) E81L=6686 Siemens made By Valvo, Hamburg, Germany NOS 1963 (22ma)
(!!!) (Best Single) E82CC=12AU7 Siemens NOS triple mica NOS 1967 (10.8ma/11.2ma)
E83F=6689 Philips Miniwatt SQ Holland NOS 1964 (10.5ma)
E83F=6689 Philips Miniwatt Holland Gold Pins NOS 1965 (11.9ma)
(!!) (Recommended pair) E83F=6689 Philips SQ Holland NOS gold pins 1974 (9.4ma and 9.6ma)
E83F=6689 Siemens Holland NOS 1963 (10.6ma)
(!) (Best Single) E83F=6689 Siemens Holland NOS gold pins 1968 (15.2ma)
E88C Siemens Halske rebranded RCA Germany NOS 1968 (14ma)
(!!!) (nice single) USN-6922=E88CC Amperex USA gold pins used/like new 1962 (16/12.8ma)
(!!!!) (Best Mullard Single) E88CC/01=6922 Mullard England Mitcham plant NOS 1964 (11.0/11.2ma) (3D MIDS, low noise) (mic)
(!!!!) (Recommended Mullard) E88CC=6922 Philips SQ England NOS 1971 (10.5/12.4ma) (Sweet, beautiful midrange, low noise)
(!!!) (Best Overall Single) E90F=6BH6 Philips SQ Holland NOS 1968 (8.4ma)
EABC80=6AK8 Amperex Italy used/strong 1963 (1.0ma)
EABC80=6AK8 Philips Italy branded RCA Germany NOS 1969 (1.3ma Gm=1500)
EABC80=6AK8 RCA by Siemens Germany NOS 1967 (0.7ma Gm=1200)
EAM86=6GX8 Valvo by Telefunken West Germany NOS (2 in stock)
EBC81=6BD7A Siemens made in Hamburg by Valvo 1960 in white box
EBF80=6N8 Mullard Holland low hours/tests like new 1957
EBF80=6N8 Siemens West Germany used/good
EBF80=6N8 Telefunken Germany Diamond NOS rebranded International 1971 (1 in stock)
EBF80=6N8 Tungsram Hungary branded Telefunken Germany 1961 (2 in stock)
EBF83=6DR8 Siemens branded Telefunken NOS 1960's (3 in stock)
EBF83=6DR8 Amperex by Mullard NOS 1960's (6 in stock)
EC88=6DL4 Valvo branded Amperex Germany NOS 1972 (11.5ma)
EC88=6DL4 United France NOS/70-75% (1 pair)
EC88 Telefunken Germany NOS 1964 (10ma)
EC88 Telefunken Germany NOS 1964 (16ma)
(Best Single) EC90=6C4 Mullard branded Philips UK box plate NOS 1967 (11ma)
(!!) (Best Single) EC92=6AB4 Siemens Halske Germany NOS 1971 (10.2ma)
(!!) EC92 Siemens Halske NOS rebranded Philips Miniwatt 1968 "O" getter halo (6.8ma)
(!!!) (Recommended Single) EC92=6AB4 Siemens Halske NOS 1967 (9.2ma)
(!!!!) (Recommended Single) EC92 Valvo Germany by Siemens NOS 1972 (12.5ma)
(!) ECC189=6ES8 Amperex Globe Logo Holland NOS 1969 (17.8/17.2ma)
(!!) ECC31=CV1285=6N7G Mullard black plates NOS 1950's (7.4/9.4ma)
(!!!!) (Best Single 1961) ECC33 Mullard gray plates "D" getter halo NOS 1961 (9/9ma) 1-2% section balance
(Best Single) ECC34 Mullard NOS 1950's (10.1ma/10.2ma)
(!!) (Recommended Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (5.8/6.6ma and 6.0/6.6ma)
ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1967-1970
(!!) (Best Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (6.0/6.1ma and 6.0/6.1ma) 1-2% matched
(!!) (Recommended Pair) ECC40 Siemens NOS made by La Radiotechnique, Chartres/France 1967-1972 (6.1/6.4ma and 6.0/6.0ma)
(GOOD VALUE) ECC801S=12AT7 Telefunken triple mica used/65% 1967 (6.2ma/6.9ma)
(GOOD VALUE) ECC801S=12AT7 Telefunken triple mica used/65% 1967 (5.6ma/6.0ma)
(!!!) (slightly microphonic single) ECC801S Telefunken <> bottom rebranded 12AT7/ECC81 Telefunken NOS 1962 (9.2ma/10.2ma)
ECC808=6KX8 Telefunken Diamond Bottom NOS 1969 (.9/.9ma Gm=1500/1500) 1% section balance
ECC808=6KX8 Telefunken Diamond Bottom NOS faded printing from rubbing inside box 1969 (.8/1.0ma Gm=1400/1500)
(!!!!) (BEST PAIR #1) ECC808=6KX8 Telefunken Diamond Bottom NOS 1969 (1.2/1.2ma and 1.3/1.4ma)
(!!!) (BEST PAIR #2) ECC808=6KX8 Telefunken Diamond Bottom NOS 1969 (1.1/1.1ma and 1.1/1.4ma)
(!!!) (slightly microphonic) ECC81=12AT7 Miniwatt by Mullard NOS 1970 (9.6/10.6ma)
(!!!) (single) ECC81=12AT7 Philips Miniwatt by Mullard UK like new "o" getter 1957 (8.2/7.6ma) (Mitcham plant)
(!!!!) (Best Overall Single) ECC81=12AT7 Philips Miniwatt France by La Radiotechnique NOS 1962 (8.8/8.8ma) 1-2% section balance
(!!!) (Recommended Siemens Single) ECC81=12AT7 Siemens branded Mullard NOS circa 1970 (10.0/10.8ma)
(!!!) (Single) ECC81=12AT7 Siemens Halske branded Mullard like new 1966 (8.2/7.4ma)
(!!!) (Single) ECC81=12AT7 Telefunken Germany <> bottom NOS 1963 (6.8ma/7.6ma) (recommended for mic)
(!!!) (Best Single) ECC82=12AU7 Philips Holland branded SONOTONE NOS 1960 (10.6/12ma)
(!!!) (Best Single 1961) ECC82=12AU7 Miniwatt Holland NOS 1961 (9.8/9.2ma)
(!!!!) (Best Pair #1) ECC82=12AU7 Philips Holland NOS 1972 (12/12ma and 11.2/11.8ma) (Highest mA and Gm)
(!!!!) (Best Pair #2) ECC82=12AU7 Philips Holland NOS 1971 (10.8/11ma and 10.0/10.4ma)
(!!) (Good Value Single) ECC82=12AU7 Philips Miniwatt Holland used/good 1965 (7.8/10ma)
(!!!!) (Recommended Pair) ECC82=12AU7 Telefunken Diamond Bottom ribbed plates used/tests like new 1960's (9.2ma/8.4ma and 9.3/9.4ma)
(!!!!!) (Best Single) ECC82=12AU7 Telefunken Diamond Bottom <> smooth plates NOS 1970 (14.4/14.2ma) (Highest mA and Gm)
(!!!!) (Best Pair) ECC82=12AU7 Telefunken Diamond Bottom smooth plates NOS 1964 copper grid posts (10.6ma/10.2ma and 11/4/10.2ma)
(!!!) (Single) ECC82=12AU7 Tesla NOS 1970's (10.8ma/10.2ma)
(!) ECC82=12AU7 Valvo Holland used/good 75-90% 1968 (7.8/9.0ma)
(!) ECC83=12AX7 China branded Siemens NOS 1993 (Gm=1300/1500)
(!!!!) (Best Value used) ECC83=12AX7 Fisher Mullard ribbed plates used/good 1964 (.8/1.2mA Gm=1400/1600)
(!!!) (Recommended Pair) 12AX7 Triotron by Philips Holland NOS and Valvo Holland like new 1966-1968 (1.7/1.5ma and 1.5/1.5ma)
(!!!!) (Best Siemens Single) ECC83=12AX7 Siemens Halske Germany branded SONOTONE NOS 1962 (Gm=1900/1700) (1.5/1.3ma)
(!!!) (Best Value Single) ECC83=12AX7 Siemens Halske Germany used/good 1960's faded date code (1.3/0.9ma and Gm=1700/1500)
(!!) (Best Value Single) ECC83=12AX7 Tungsram Hungary 1980 era branded Amperex NOS 1985 (1.3/1.6ma and Gm=1800/1800)
(!!!!) (Best Pair) ECC83=12AX7 Tungsram Hungary branded IEC Mullard NOS 1982 (1.5/1.4ma and 1.5/1.4ma) 1% matched
(!!!!!) (Best Tungsram Single) ECC83=12AX7A Tungsram Hungary branded RCA NOS 1970's (Gm=2000/2300) (1.7/1.8ma) (Highest mA and Gm)
(!!!!) (Recommended Pair) 12AX7=ECC83 Philips and Pope Holland NOS 1965-1967 (2.1/1.8ma and 1.6/2.1ma) (Highest mA and Gm)
(!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's 2-3% matched (9.6/11.6ma and 9.0/11.0ma)
(!!) (Best Value Single) ECC85=6AQ8 RCA Canada NOS 1970's (12.6/11.0ma)
(!!!) (Recommended Pair) ECC85=6AQ8 RCA Heerlen Holland NOS 1968 (21/16.5ma and 18.5/15.5ma) (close Gm)
(!!) (Good Value Pair) ECC85=6AQ8 RCA Japan by Hitachi 1970's (10/15ma and 10.4/14.4ma)
(!) (SINGLE) ECC85=6AQ8 Sylvania black plates NOS 1960's (10.2/10.4ma)
(!!!) (Single) ECC85 Siemens Germany NOS 1962 (9.5/8.2ma)
(!!) (Recommended Single) ECC85 Siemens Germany NOS rebranded RCA 1969 (16.5/14.5ma)
(!) (Good Value Single) ECC85 Siemens Halske Germany branded RCA NOS 1969 (9.2/8.6ma)
ECC88=6DJ8 Siemens Germany Tektronix checked small "o" getter halo 1971 used/good (12.5/16.2ma)
(!!!) (Best Mullard Single) ECF80=6BL8 IEC Mullard UK NOS 1966 (16ma/12ma) (Highest mA and Gm)
(!!!!!) (3rd Best Pair) ECF80=6BL8 Telefunken Germany <> bottom NOS 1971 (11.8/9.6ma and 11.0/8.6ma) (best sound)
(!!!!) (Best Single) ECF80=6BL8 Telefunken Germany NOS 1971 (12.5/10ma)
(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom used/good 1964 (10.0/10.2ma)
(!) ECF82=6U8 Telefunken <> bottom used/good 1967 (13.4ma triode and 6ma pentode)
(!!) ECF82=6U8 Telefunken Germany <> bottom NOS 1968 (12.8ma triode and 8.2ma pentode)
(!!) ECF82=6U8 Telefunken Germany <> bottom NOS 1968-1969 faded printing (14ma triode and 8.6ma pentode)
ECF83 Telefunken NOS 1965 (1 in stock)
ECH3 Philips Miniwatt 1940's used/good
ECH3 Tungsram used/good 1940 era
ECH42=6CU7 Valvo Germany NOS made by La Radiotechnique France early 1960's (2 in stock)
ECH42=6CU7 International Germany NOS made by La Radiotechnique France early 1960's (3 in stock)
ECH81=6AJ8 Amperex Italy NOS 1968 (6.4ma and 12.8ma)
(!!!) (Best Sound) ECH81=6AJ8 Telefunken Germany <> bottom used/tests like new 1960 era (6.0ma and 12.2ma)
ECH81=6AJ8 Tungsram Hungary branded Telefunken tests like new 1970's (6.5ma and 10.6ma) (strong Gm)
(!!) (Single) ECL82=6BM8 Lorenz Germany NOS 1960's (2.3ma/33ma)
(!!) ECL82=6BM8 RCA Mexico NOS 1970's (1.8ma/28ma)
(!!) (Best Value Single) ECL82=6BM8 RCA Mexico NOS 1970's (2.1ma/28ma)
(!!!) (Best Single #2) ECL82=6BM8 Telefunken Germany <> bottom NOS 1962 (2.3/33ma)
(!!!) (BEST 6BM8 - best sound) ECL82=6BM8 Telefunken Germany <> bottom NOS 1967 (2.3/59ma)
(!!) (Best Value Single) ECL82 EI Yugo branded PAN Germany in PAN box NOS 1974 (2.3ma and 42ma)
(!) (Best Value Single) ECL82 EI Yugo branded RSD Germany in RSD box NOS 1974 (1.7/33ma)
(!) (SINGLE) ECL82 Philips Miniwatt Holland NOS 1960 (0.8ma and 37ma)
(!!) (SINGLE) 6BM8=ECL82 Valvo Holland used/good 1960 (1.9ma/34ma)
(!!) (Best Single) ECL86=6GW8 Amperex Bugle Boy Holland NOS 1966 (1.3ma and 40ma)
(!!) (BEST SINGLE) ECL86=6GW8 Brimar UK branded GE NOS 1977 (1.2ma and 44ma)
(!!) (Recommended Pair) ECL86=6GW8 GE and Philips by Brimar UK NOS 1968 (1.4/1.0ma and 31/33ma)
(!!!) (Recommended Pair) ECL86=6GW8 Philips and Philips Miniwatt Holland NOS 1965-1970 (1.1/1.3ma and 27/26ma)
(!!) (Recommended Pair) ECL86=6GW8 Mullard UK NOS 1964 and 1973 same build (1.5/1.3ma and 31/30ma)
(!!!) (Recommended Value Pair) ECL86=6GW8 Philips Holland NOS 1968-1969 (1.0/1.1ma and 31/34ma)
(!) ECL86=6GW8 Philips Miniwatt made in Canada 1964 used/good (1.2ma and 27ma)
(!!!!) (Best Pair) ECL86=6GW8 Philips Holland NOS 1968 (1.1/1.2ma and 40.5/44ma)
(!!!) (Best Single) ECL86=6GW8 Siemens Germany branded RCA NOS 1964 (1.0ma and 39ma)
(!!!!) (Best Pair) ECL86=6GW8 Siemens Germany NOS 1968-1969 (1.1/1.2ma and 41/46ma)
(!!!!) (Best Pair) ECL86=6GW8 Philips Holland NOS dimpled disc getter halos 1968 (1.6/1.7ma and 36/41ma)
EDD11 Telefunken used/good 1940's
EF11 RSD Germany NOS 1950's (6.1ma) (tested on Amplitrex)
(!!) EF184=6EJ7 Mullard UK in Kradlepack box 1969 (9.7ma)
(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1965 (11.2ma and 11.6ma) 1-3% matched
(!!!) (PAIR) EF184 Mullard branded Philips NOS 1964-1965 (8.0ma and 8.2ma) 1-3% matched
(!!) EF184 Siemens Germany NOS 1967 (7ma)
(!!) EF184 Siemens Halske branded Zenith Germany NOS 1969 (9.4ma)
(!!) (SINGLE) EF184 Siemens rebranded RCA NOS 1970 (13.2ma)
EF184 Telefunken Germany <> bottom used/good, gray shield 1960's (9.4ma)
EF22 Mullard and Tungsram NOS
EF40 Mullard France NOS 1961 (3.7ma)
EF40 Siemens by Valvo Germany NOS 1956 (3.0ma)
EF41 European Brands NOS (4 in stock)
(BEST PRICE) EF42 NOS (4 for $29.99)
EF42 NOS (10 in stock)
EF5 NOS (3 in stock)
(!!) EF80=6BX6 Mullard UK "D" getter NOS 1963 faded Mullard logo (10.6ma)
(!!) EF80=6BX6 RTC by EI Yugoslavia NOS 1976 (14ma)
EF80=6BX6 Sylvania Made in England unknown maker NOS 1970's (19.5ma)
EF80 Lorenz made in Philips Italy NOS 1967 (7ma)
EF80 Siemens Germany 1964 rebranded IEC Mullard 1966 NOS (6.7ma)
EF80 Valvo made in Philips Italy NOS 1969 (8.5ma)
EF804 Telefunken Germany NOS 1957 (2.7ma)
EF804 Telefunken Germany NOS 1960's (2.9ma)
EF804 Telefunken Germany NOS 1964 (3.2ma)
EF804 Telefunken Germany NOS 1965 (3.2ma)
EF804 Telefunken Germany NOS 1966 (2.9ma)
EF804 Telefunken Germany NOS 1959 (2.4ma)
(!!!) (SINGLE) EF806S Telefunken Germany <> bottom used/good 1963 (2.3ma Gm=1900)
EF83 Valvo Germany NOS 1962 (4.7ma Gm=1800)
EF83 Telefunken <> bottom Germany NOS 1962 (4.0ma Gm=1800)
EF85 Philips Miniwatt Holland NOS "D" getter 1961 (3 in stock)
EF85=6BY7 Siemens branded Telefunken NOS 1969 (3 in stock)
EF86 Amperex Germany by Valvo used/good 1963 (2.5ma)
(!!) (Good Value) EF86=CV2901 Mullard Blackburn UK "D" getter used/good 1959 (2.4ma)
(!) (BEST VALUE) 6267=EF86 Siemens East Germany by RFT NOS 1971 (2.6ma)
(!!!!) (Recommended Pair) EF86 Telefunken Germany <> bottom NOS gray shield 1972 1-2% matched (3.1ma and 3.1ma) (Neumann, Lawson, Soundelux, Manley)
EF86 United Russian NOS 1980's (3.1ma)
EF86 Zaerix Russian tests like new 1970's (3.0ma)
(!!) (Best Sounding EF89) EF89=6DA6 Mullard UK NOS 1959 (7.5ma)
(!!) (Best Sounding EF89) EF89=6DA6 Telefunken Germany <> bottom NOS 1960's (9 in stock)
EF89=6DA6 Mullard Austria NOS 1964 (8.2ma)
EF9 Miniwatt used/good 1940's
6CS6 RCA Brazil 1960's - 1970's (19 in stock)
10uf @ 450V Sprague FP cap NOS 2"H x 1" diameter
EL34 CHINA branded Philips welded plates NOS 1980's (105ma)
EL34 Holland brown base used/good faded top getter 1961 (78ma)
EL34 Matsushita Japan branded Amperex NOS 1975 (73ma)
(!!!!) (Recommended Pair) EL34 Mullard branded Philips and GE NOS XF4 1977-1979 (99ma and 101.5ma)
(!!!!) (Best Overall Pair) EL34 Mullard branded Philips NOS XF4 1979 (85ma and 85.5ma)
(!!!) (XF4 Pair) EL34 Mullard branded Philips NOS XF4 1975-1979 (89ma and 98ma)
(!!!) (Best Value Pair) EL34 Mullard Philips UK NOS XF3 1974 and used/strong XF4 1975 (106.5ma and 101.8ma)
(!!!!!) (Best XF3 Pair) EL34 Mullard Philips XF3 NOS 1974-1975 (88ma and 90ma)
(!!!!!) (Best Value Single) EL34 Mullard UK branded Pinnacle XF2 double halo "O-O" NOS 1965 (67ma)
(!!!!!) (Best Single) EL34 Mullard UK XF1 NOS 1959 double "O-O" getter halos (83ma) (1st version after metal base) (very rare)
(!!!!) (Good Value XF2 Pair) EL34 Mullard UK XF2 double round "O-O" getter halo used/good 1965-1967 (72ma and 76.5ma)
(!!!!!) (Recommended XF2 Pair) EL34 Mullard UK XF2 single halo "O" NOS 1969-1970 (87.6ma and 90.5ma) (close Gm)
(!!) (SINGLE) EL34 Mullard XF2 single "O" halo used/70% 1971 heat stain on plate (63ma)
(!) (Single) EL34 Mullard XF2 double halo "O-O" used/70% 1962 (62.5ma)
(!!!!) (Single 1965) EL34 Philips Miniwatt by Mullard XF2 double round getter halo "O-O" NOS 1965 (76ma)
(!!!!) (SINGLE) EL34 Pope Mullard XF2 single halo "O" used/very good 1970 (82ma) (Gm like new)
(!!!!) (Recommended Pair) EL34 Mullard branded Siemens and RCA XF2 single "O" getter halos NOS 1969-1972 (78ma and 81.5ma)
(!) (BEST VALUE) EL34 Philips Holland brown base used/good 1960 era (95.5ma)
EL34 Philips Holland brown base used/good double "D" getters 1962 (74ma)
6CA7=EL34 Siemens Germany skinny bottle branded CEI NOS 1975 (79ma)
6CA7=EL34 Siemens Germany skinny bottle branded CEI NOS 1975 (85ma)
(!!) EL34 Telefunken Germany used/good/75% 1967-1971 in white box (62ma)
EL34 Tesla like new 1980 4 vertical scrapes on base (92ma)
EL34 Tesla 1970's used/75% (64ma)
EL34 Winged C SED Russian NEW 2006 (75.5ma)
EL34J CHINA welded plates used/good 1970's (77ma)
(!) (Recommended Pair) EL36 Haltron Japan clear top NOS 1960's (86ma and 93ma)
(!!) (Recommended Mullard Pair) EL36 Mullard branded International NOS 1969 (82ma and 88ma)
(!) (Recommended Mullard Pair) EL36 Mullard Blackburn UK NOS 1963 - 1968 (93ma and 87ma)
EL3N Mazda France Red Series NOS 1950 era (1 in stock)
(!!) EL822 Mullard black plate NOS 1974 (51ma)
EL83 Amperex Bugle Boy France like new 1965 (49ma)
EL83 Tesla like new 1971 (64ma)
EL83 Valvo France NOS 1961 (47ma)
EL84 Amperex Bugle Boy Austria "D" getter used/good 1958 (34.5ma)
EL84 Amperex Bugle Boy Austria "D" getter used/good 1958 (32ma)
(!!!) (~ Best Value Single ~) EL84 Brimar England low hours/tests like new 1961 (50ma)
(!!!) (Best Single) EL84 Brimar England NOS 1962 (58.2ma)
(!!) (Recommended Pair) 6BQ5=EL84 GE NOS 1959-1961 (50.5ma and 52.5ma)
(!!!) (Best Single) EL84 IEC Mullard NOS "D" getter made in Wien, Austria 1958 (47ma) (same sound as Philips Holland)
(!!) (Single 1962) EL84 Mullard UK NOS (rX1-B2C3=1962) (39.6ma)
(!!) (Recommended Single) EL84 Mullard UK branded RTC England NOS 1977 (40.4ma)
(!!!) (Best Value Single) EL84 Mullard England used/good 1963 (45.8ma)
(!!!) (BEST VALUE PAIR) EL84 Raytheon JAPAN NOS 1960's (45ma and 48.5ma)
(!!!) (Best Siemens Pair) EL84 Siemens Halske Germany 1966-1969 (40ma and 42.5ma)
EL84 Siemens Halske Germany NOS 1967 (45ma)
(!!!!) (BEST SIEMENS PAIR) EL84 Siemens Halske Germany NOS 1969 (47.5ma and 50.4ma)
EL84 Siemens Halske Germany used/tests like new 1971 no printing (48.2ma)
(!!!!!) (Recommended Pair) EL84 Telefunken Germany <> bottom used/good 1960-1963 (45ma and 45.2ma) 1-2% matched
EL84 Telefunken Germany <> bottom used/good 1960's no printing (39.2ma)
(!!!!) (Recommended Pair) EL84 Telefunken Germany <> bottom NOS and used/good 1950's-1962 (43.2ma and 42.6ma)
(!!!!) (Recommended Pair) EL84 Telefunken Germany <> bottom NOS 1963-1966 (68ma and 69.5ma) (recommended for FIXED-BIAS amp only due to high current)
EL84 Tesla used/good 1980's no printing (43.5ma)
(!!) EL84 Ultron USSR Russia used 1990 era (32ma)
(!!!) (Best Pair from 1959) EL84 Wien Austria same build and sound as Holland 1959 (38ma and 39ma)
(!!) (Good Value Single) EL84 Zenith Holland "D" getter used/very good 1958 (41ma)
(!!) (Good Value Single) EL84 Zenith Holland "O" getter used/like new 1962 (62ma)
(!!!) (Single) EL86=6CW5 Amperex Bugle Boy Holland NOS 1966 (57ma)
(!!!) (Good Value Pair) EL86=6CW5 Sylvania branded RCA 1970's (62ma/67.5ma)
(!!!) (Best Single) EL86=6CW5 Telefunken Germany <> bottom NOS 1958 (85ma)
(!!) (PAIR) EL86 GE Japan by Toshiba 1976 (65ma and 70ma)
(!!!!) (BEST PAIR) EL86=6CW5 Mullard UK NOS factory matched pair 1963 (70ma/74ma) (close Gm)
(!) (PAIR) EL86 Valvo Holland NOS original boxes 1969 (55ma and 56ma)
(!!!) (Recommended Pair) EL86 Valvo Holland NOS original boxes 1969 (59.5ma and 61.5ma)
(!!!) (Best Pair) ELL80=6HU8 Valvo Germany NOS branded Sylvania and Dumont 1965-1966 (22/21ma and 21/22.5ma)
(BEST PRICE) EM1 Philips Austria NOS 1956 (bright green eyes) (4 tubes for $379.99)
EM1 Philips Austria NOS 1956 (8 in stock) (bright green eyes)
EM34=CV394 Mullard Austria NOS 1955 (2 in stock)
EM34=CV394 Mullard Germany NOS early 1950's (1 in stock)
EM35 Telefunken Germany NOS 1957 tuning eye (recommended)
EM4 Miniwatt Dario France use/tests like new "clear glass" 1950's (yellow eye)
EM4 Miniwatt Holland NOS 1950's (2 in stock)
EM4 Philips Miniwatt Holland gold coated glass - original boxes 1950-1955 (bright eyes) (3 in stock)
EM4 Philips Miniwatt Holland or Austria NOS red coated glass 1950's (8 in stock)
EM4 Tronal Philips Austria NOS red coated glass 1955 (bright green eye)
EM71 Lorenz Germany tuning eye NOS 1950's (4 in stock)
EM80 Haltron European made NOS 1950's "D" getter halo (2 in stock)
EM81 Amperex made in Yugoslavia, some are branded Holland (10 in stock)
EM81 Mullard Holland NOS "D" getter halo 1958-1960 (2 in stock)
EM81 Philips Import Holland NOS 1966 (3 in stock)
(!!!) (BEST VALUE) EM84=6FG6 Ei Yugoslavia NOS 1970's (10 in stock) (bright eyes)
(!!) (BEST VALUE) EM84=6FG6 Ei Yugoslavia branded RCA Mexico NOS 1970's (3 in stock) (bright eyes)
(!!!) (BEST VALUE) EM84=6FG6 Sylvania India NOS 1970's (1 in stock) (bright eyes)
(BEST SINGLE) EM84=6FG6 Amperex Bugle Boy NOS 1963
(!) (Best Value) EM87 Haltron East Germany NOS (20 in stock)
(!!!) (BEST EM87) EM87 Valvo Germany branded Telefunken Germany NOS 1961 (2 in stock)
EMM801 Telefunken Germany <> bottom NOS 1961 (10 in stock)
EMM801 Telefunken Germany <> bottom NOS 1964
EMM801 Telefunken Germany <> bottom NOS rebranded Westinghouse 1965 (5 in stock) (tuning eye)
EMM801 Telefunken Germany <> bottom NOS 1961 (1 in stock)
EMM801 Telefunken Germany <> bottom NOS 1964 (2 in stock)
(!!) ER-245=45 Eveready Raytheon Balloon box plate used/good 1932 (22ma)
(!!!!) (Best Single) ER-245 Eveready Raytheon Balloon box plate used/very good 1932 (31ma)
EY91 International Great Britain NOS "D" getter (5 in stock)
(!!) EZ35=6X5GT Mullard UK used/tests like new 1950-1955 small crack in base (52/40 and 57/40)
(!) (Best Single) EZ80 Amperex Globe Logo France NOS 1969 (64/40 and 66/40)
(!) EZ80 GE France like new 1968 (61/40 and 62/40)
(!) EZ80 Mullard UK used/good 1960 (64/40 and 65/40)
EZ80 Philips Miniwatt France used/tests like new 1961 faded printing (64/40 and 65/40)
(!!!!) (SINGLE) EZ81 Bogen Mullard Blackburn UK "D" getter like new 1963 (56/40 and 57/40)
(!!!) (BEST VALUE PAIR) EZ81 Radiotron NOS made in India 1963
FAA-6005 Sylvania black plate NOS 1968 (40ma)
FAA-6U8A Sylvania NOS 1968 (13ma and 8.8ma)
FAA-6X4WA Sylvania NOS 1961 tilted glass (55/40 and 56/40)
(!!!!) (Factory Matched Pair) 8417-P Sylvania NOS same build 1960's (84ma and 85.5ma)
150uf @ 350VDC / 5uf @ 350VDC / 100uf/50VDC Mallory FP cap NOS (2 in stock) (1.75" Dia x 3.5" tall) (FP330.246)
100uf/350V, 100uf/350V, 10uf/350V Mallory FP metal can chassis mount cap NOS (1.375" x 3.5"H) (1 in stock)
20uf/450V, 100uf/200uf, 100uf/50V Mallory FP cap NOS 3"H x 1" diameter (FP341.24)
30uf/450V, 20uf/450V, 160uf/250V, 10uf/250VDC Mallory NOS 4"H x 1.375" dia (FP427.695)
30uf/475V, 4/475, 4/475, 200/25 Sprague 2"H x 1.375" dia
50uf/500VDC, 10/250, 1000/40, 100/40 Mallory FP cap NOS (2 in stock)
(!!!!!) Freed Power Transformer (high voltage - 1160VCT) like new (2 in stock)
G-45 Majestic Balloon (display tube) (gassy)
G-82 Majestic Balloon NOS 1930 era (52/40 and 54/40) (rare)
(!!) GB-0A2WA Sylvania Gold Brand low hours/like new 1970 era
(!!!) (BEST PAIR) GB-5654=6AK5 Sylvania Gold Brand Gold Pins NOS 1960's (9.3ma and 9.9ma)
GB-5725=6AS6 Sylvania Gold Brand nickel pins (not gold plated) NOS (4.7ma)
GB-5725=6AS6 Sylvania Gold Brand nickel pins (not gold plated) NOS (5.0ma)
GB-5727=2D21 Sylvania "Gold Brand with Gold Pins" NOS (4 in stock)
GB-5749=6BA6W Sylvania Gold Brand NOS 1960's (9.2ma)
GB-5933WA Sylvania Gold Brand NOS 1960 era partially faded top getter (73ma)
(!!!!) (Best Overall Single) GB-5963=12AU7 Sylvania Gold Brand Gold Pins NOS 1960's (11.2/13.6ma)
(!!!!) (Best Single) GB-6201 Sylvania Gold Brand NOS 1970 era (11.5ma/10.5ma)
GB-5933 Sylvania Gold Brand used/good 1960's (60ma)
(!!!!) (GE Pair) 6BQ7A GE NOS "O" getter halo 1978-1980 (8.4/11.8ma and 9.4/11.0ma) (Schiit, DNA, Modwright)
Gift Card
(!) 866A GE NOS 1974
GM-70 (rM-70) Russian Power Triode (copper plate) 1977 (1 tube) (20V filament)
(!!!) (Good Single) 12AX7 Amperex Bugle Boy Holland "Long Plates" with "D" getter used/tests like new 1957 (Gm=1600/1700 and 1.0/1.2ma)
(!!) (Good Value) 12AT7 Telefunken Diamond Bottom used/good 1960's (8.2ma/10.4ma)
(!!) (~ Best Value ~) 12AT7 Toshiba JAPAN rebranded "LINDAL TUBE JAPAN" NOS 1960's copper grid posts (13.8/15.4ma)
(!!) (Good Value) 12AU7A RCA clear top used/good 1960's (8.8/9.0ma)
(!!!) (Good Value) 12AX7A/7025 GE NOS pinched plates 1976 (0.9/1.7ma and Gm=1500/2000)
(!!!) (Best Value) 12AX7A RCA gray ribbed plates "O" getter halo NOS 1965 (1.0/0.8mA and Gm=1600/1400)
(!!!) (Good Value) 12AX7A RCA gray ribbed plates "O" getter halo NOS 1973 (1.0/0.9mA and Gm=1400/1550)
(!) (Good Value) 12AX7WXT Sovtek NOS 1990's (Gm=1500/1400 and 0.9/0.8ma)
(!!!!) (Good Value 1962) M8137=12AX7S Philips SQ France ribbed plates NOS 1962 (0.8/0.9ma and Gm=1350/1350) (Special Quality 12AX7)
(!!!!) (Good Value 1962) M8137=12AX7S Philips SQ France ribbed plates NOS 1962 (1.1/1.1ma and Gm=1550/1450) (Special Quality 12AX7)
(!!!) (Good Value) 5V4G=CV729 Brimar UK gray plates "D" getter halo 1950's used/good (59/40 and 65/40)
(Good Value) 8417 Sylvania NOS 1970's (76.6ma)
(!!!) (Good Value Pair) 12AU7A RCA clear top used/good 1960's (8/10ma and 8/9.5ma)
(!!!!) (GOOD VALUE PAIR) 408A Western Electric NOS 1972 and 1976 (78/60 and 80/60)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (25/27ma and 26.5/26ma)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (26.2/27ma and 25.6/28ma)
(!!!!) (Good Value Pair) 5687WB GE used/good 1970 era (26/27ma and 26.6/27.8ma)
(!!!) (Good Value Pair) 6350 Sylvania black ribbed plates "U" getter used/good 1957 (9.6/9.3ma and 9.5/9.8ma) 1-3% matched (same Gm)
(!!!) (Good Value Pair) 6GK5=6FQ5A Sylvania rebranded Raytheon NOS (8ma and 8ma)
(!!) (Good Value Pair) 6KD6 GE branded Westinghouse NOS 1982 (60ma and 61ma)
(!!!) (Good Value Pair) 6L6WGB=5881 Sylvania brown base NOS and used/like new (59ma and 61ma)
(!) (Good Value Pair) 6SF5 RCA used/good 1948 Pair (0.8ma and 0.8ma)
(!!!!) (Best Value Pair) 6SN7GTA GE NOS "U" getter halo - side getter - copper grid posts 1953 (6.4/7.0ma and 7.0/6.4ma) 1-2% matched
(!!!) (Good Value Pair) CK-6080 Raytheon black plates NOS 1962 (60/79ma and 60/76ma)
(!!!) (Good Value Pair) CK-6080 Raytheon black plates NOS 1962 (66/86ma and 73/86ma)
(!!!) (Good Value Pair) CK-6080 Raytheon black plates NOS 1962 (67/62ma and 67/60ma)
(!!!!) (Good Value Pair) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1982 (6.8/6.8ma and 7.0/7.2ma)
(!!) (Good Value Single) 12AU7 Amperex "Hewlett Packard" Holland "o" getter halo used/good 1968 (8.2/8.4ma)
(!!) (Good Value Single) 12AU7 Amperex Holland "o" getter halo used/like new 1965 no printing 1965 (10.6/10.6ma) 1% section balance
(!!!) (Good Value Single) 12AX7A RCA Magnavox ribbed plates used/good 1961 (Gm=1500/1900 and 0.8/1.3ma)
(!!!) (Good Value Single) 12AX7A RCA ribbed plates NOS 1974 (Gm=1600/1400, 1.1/0.8ma)
(!!!!) (Good Value Single 1964) PCC88=7DJ8 Philips Miniwatt Holland "O" getter NOS 1964 (10.5/16.2ma)
(!!!!!) (Good Value Single) 45 Sylvania branded RCA NOS 1952 stains on glass (31.6ma)
(!!!!!) (Good Value Single) 45 Sylvania branded RCA NOS 1952 stains on glass (47ma)
(!!!) (Good Value Single) 5U4G=VT-244 Sylvania used/good 1940's (51/40 and 52/40)
(!!!) (Good Value Single) 6L6GC RCA black plate NOS 1965 broken center guide pin (76.2ma)
(!!!!) (Good Value Single) 6SN7GTA GE "U" getter halo used/good 1952 (9.4/11.4ma)
(!!!!) (Good Value Single) 6SN7GTA GE "U" getter halo used/good 1954 (6.0/6.4ma)
(!!!) (Good Value Single) 807=ATS25 GEC England ceramic base NOS 1940's (70.2ma)
(!) (Good Value Single) ECF80=6BL8 Telefunken Germany <> bottom like new 1971 (11.6/9.6ma)
(!!) (Good Value Single) EL84 Amperex Holland "D" getter used/75% 1959 (33ma)
(!!) (Good Value Single) EL84 Zenith Holland "D" getter used/65% 1959 (35ma)
(!!!!) (Good Value Single) JRP-12AX7 Raytheon Black Plates NOS 1962 (Gm=1300/1500) (0.7/1.0ma)
(!!!!) (Good Value Single) JRP-12AX7 Raytheon Black Plates NOS 1962 (Gm=1500/1700) (0.9/1.2ma)
(!) (BEST GZ32 SINGLE) GZ32 Miniwatt Dario France NOS around 1955 (61/40 and 62/40) very small rattle inside base
(!) (BEST GZ32 SINGLE) GZ32 Miniwatt Dario France NOS 1956 (63/40 and 63/40) small rattle inside base
(!!!) (BEST SINGLE #3) GZ32 Miniwatt Dario France NOS around 1955 (62/40 and 62/40) small rattle inside base
(!) (BEST GZ32 SINGLE) GZ32 Miniwatt Dario France NOS 1956 (62/40 and 62/40) small rattle inside base
(!) (BEST GZ32 SINGLE) GZ32 Miniwatt Dario France NOS 1956 (64/40 and 64/40) small rattle inside base
(!!) (BEST VALUE) GZ34 Mullard rebranded Sylvania used/like new 1969 (58/40 and 60/40)
(!!!!) (Best Single) GZ34 Mullard UK branded Mazda NOS 1975 (58/40 and 59/40)
(!!!) (Recommended Single) CV378=GZ37 Mullard NOS "O" getter halo 1967 (50/40 and 50/40)
(!!!!) (Best Value 1955) CV378=GZ37 Mullard UK "D" getter NOS 1955 (56/40 and 56/40)
(!!!!) (Recommended Single) GZ37 Mullard UK NOS 1967 (50/40 and 50/40)
High Voltage Wire (35KV Breakdown)
(!!!!) (Holland Single) 12AU7 Philips Miniwatt Holland like new 1961 large "O" getter halo (9.6/11ma)
(!!!!!) (Best Sound for the Money Pair) JAN-12AT7WC Sylvania black plates NOS 1980 (7/8ma and 7.3/8.2ma)
(!!!!) (Best Pair) JAN-12AT7WC Sylvania black plates NOS 1975-1980 (10/8.6ma and 10.2/9.2ma)
(Best 12AT7 Value) JAN-12AT7WC Sylvania black plates NOS 1970's - 1982 (13 in stock)
(!!!!) (Best Value Pair) JAN-12AT7WC Sylvania black plates NOS 1980 (8.6/7.6ma and 9.0/7.5ma)
(!!!!) (Best Overall Pair) JAN-12AT7WC Sylvania black plates NOS 1979-1980 (9.8/10ma and 10.8/9.8ma)
(!!) (Recommended Single) JAN-12AX7WA Sylvania NOS 1974 (Gm=2100/2300 and 1.7/1.9ma)
(!) (BEST VERSION) JAN-1B3GT=1G3GT Sylvania NOS 1970's (12 in stock)
(!) (BEST VERSION) JAN-1B3GT=1G3GT Tungsol NOS 1960's (15 in stock)
(!!!) (SINGLE) JAN-329A Western Electric 1940's tests like new (30.6ma)
(!!!!) (Best Single) JAN-5687WA Sylvania NOS 1967 (38/39ma) (Highest Ma and Gm)
(!!!!!) (recommended pair) JAN-5691 Sylvania black plates NOS 1977 (2.8/3.1mA and 2.5/2.9mA) (Best 6SL7GT sub) (same internals as 5691 red base)
(!!!) (Recommended Single) JAN-5751 GE double mica gray plates NOS 1981-1982 (2.3/2.7ma)
(!!) (Best Single) JAN-5755 Raytheon Black Plates NOS 1971 (2.3/2.4ma) close triode balance
(!!!) (Recommended Single) JAN-5814A RCA black plates NOS 1966 (9.8/11.4ma)
(!!!) JAN-5814A Sylvania NOS 1967 (8.4/9.2ma)
(!!!) JAN-5814A Sylvania NOS 1967 (8.6/11.2ma)
(!!!) (Recommended Pair) JAN-5842WA Raytheon NOS 1984 original boxes (22.6ma and 22.8ma) 1-3% matched
(!!!!) (Pair) JAN-5842WA Raytheon NOS 1984 (17.5ma and 17.6ma) 1-2% matched
5876A RCA NOS 1970's (7 in stock)
JAN-5R4WGB Raytheon used/good 1975 (46/40 and 52/40)
(!!!!!) (BEST PAIR) JAN-6005W GE NOS 1980-1982 (56.5ma and 56.6ma)
JAN-6080WC Sylvania used/good 1981 (81ma/98ma)
(!!!) (Good Value Single) JAN-6189=12AU7WA Sylvania NOS 1960 era in white box (8.6/10ma)
(!!!!) (Recommended Pair) JAN-6189W Sylvania NOS 1974-1976 (9.2/10.2ma and 9.3/9.4ma) (Same Gm)
(!!) (Recommended Single) JAN-6384 Cetron by Tungsol NOS 1970's (70ma)
(!!!) (Good Value Pair) JAN-6384 Cetron by Tungsol used/very good 1979 (66ma and 63ma)
(!!!!!) (BEST OVERALL QUAD) JAN-6550A GE NOS 1985-1986 (135ma, 135.6ma, 134.5ma, 135.8ma)
JAN-6550A GE NOS 1985-1986 slightly tilted glass (153ma)
JEA-6877 Bendix gold pins NOS 1961-1962
(!!!!) (NICE SINGLE) JAN-6922 Amperex USA like new 1971 (13.4/12.6ma)
(!!) (slightly microphonic pair) JAN-6SL7GT=VT-229 RCA NOS and like new 1940's (2.5/2.4ma and 2.4/2.6ma) 1-3% matched
6U8A Philips by Sylvania NOS 1987 (20.2ma and 7.5ma)
(!!) JAN-6V6GTY GE NOS brown base gray plate 1969 (43ma)
(!!) JAN-6V6GTY Sylvania NOS 1972 (41ma)
(!!!!) (Recommended Single) JAN-7308 Raytheon NOS 1968 (12.5/16.8ma)
807 Radiotron Australia by Amalgamated Wireless Valve (AWA) used/like new, flaked getter (72ma)
(!) JAN-807 Westinghouse Canada NOS 1960 era (72ma)
JAN-872A GE NOS 1940's reboxed (1 in stock)
(!) (Best Single) JAN-CBOP-705A Lewis and Kaufman NOS (64/40)
JAN-CDZ-811 Electronic Enterprises NOS made by RCA 1955 (50/36)
JAN-CDZ-811 Electronic Enterprises NOS made by RCA 1954 (66/36) (strong single)
JAN-CEA-5852=6X5GT Bendix branded Eclipse Pioneer used/good 1957 (46/40 and 46/40) (TE-5 series)
(!!!) (Best Pair) JAN-CEA-5852=6X5GT Bendix NOS 1953 (63-64/40 x 2 sections) 1% matched (Best Audio Grade 6X5GT)
(!!!!) (Best 6X5GT Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 (64/40 and 66/40) (Best Audio Grade 6X5GT)
(!!!) (Best Single) JAN-CEA-6094 Bendix like new 1956 (61ma) (1st series)
JAN-CG-393A GE NOS 1940's original box, strong output, tilted top plate (64/40)
(!!) JAN-CG-6V6GT GE NOS 1954 (43.5ma) (similar to RCA)
(!!) JAN-CG-6V6GTY GE brown base gray plate NOS 1966 (48.5ma)
JAN-CHS-1625 Sylvania NOS 1943-1944 (1 in stock)
(!) (1 Pair) JAN-CHS-1625 Sylvania 1940's like new (72/40 and 72/40)
(!!) JAN-CHS-1629 Sylvania NOS 1940's bright eye
(!!) (Recommended Single) JAN-CHS-1629 Sylvania NOS 1940's bright eye
(!!) JAN-CHS-1629 Sylvania NOS 1940's bright eye
(!!) (BEST VALUE) JAN-CHS-1629 Sylvania NOS 1943 bright eye (6 in stock)
JAN-CHS-5933=807W Sylvania NOS double D getters 1956 (74ma)
(!!!) (Single) JAN-CHS-5Y3WGTA Sylvania NOS 1960 (49/40 and 56/40)
(slightly microphonic) JAN-CHS-6SN7W Sylvania "SHORT BOTTLE" used/good 1945 (7.0/7.6ma)
JAN-CHS-811 Sylvania used/good 1940's small heat stain on plate (50/36)
USN-CHY-1616 Hytron USA tests like new - scratches on base 1950's (54/40)
(!!!) (Single) JAN-CHY-5Y3WGTA CBS Hytron triple mica D getter used/tests like new 1956 (53/40 and 57/40)
JAN-CNU-12J5GT Nat. Union Black Ribbed Plate NOS 1952 (8.2ma)
(!!!) (SINGLE) JAN-CRC-5693 RCA used/like new 1958 (2.9ma)
(!!) (Best Single) JAN-CRC-5693 RCA red can NOS 1961 (3.3ma) (Peluso, Gibson)
JAN-CRC-6AF6G RCA tuning eye NOS 1955
JAN-CRC-6X5GT RCA 1940's used/good (47/40 and 48/40)
2K25 Raytheon NOS 1940's in white box (1 in stock)
2K25 Raytheon NOS factory sealed 1955 original box
(!!) (Best Value Single) JAN-CRP-5687 Raytheon black plates used/very good around 1960 (33.5/37.6ma)
(!) 5687 Raytheon part bronze part black plates used/tests like new 1960 (33/38ma)
(!) 6Y6G=VT-168A Raytheon coated glass NOS 1944 (60ma)
(!) (Best Single) JAN-CW-705A WE NOS 1940's
JC3-20-35S Jennings vacuum cap
(!!!!) (~ Recommended Pair ~) JEA-6094 Bendix NOS 1961 and 1967 same build (54ma and 55.2ma)
(!!!) (Best Single) JEA-6094 Bendix used/good 1961 (47.5ma)
(!!!!) (Best Single) JG-5670 GE NOS "D" getter triple mica 1960 (9.2/9.0ma) (sonically the same sound as 5 Star GE)
(!!!) (Single) JG-5670 GE D getter halo 1956 like new (8.3/10ma)
(!!!) (Recommended Single 1963) JG-5751 GE double mica gray plates NOS 1963 (2.2/2.4ma)
(!!) (Recommended Single) JG-5751 GE gray plates double mica "O" getter NOS 1965 (2.1/2.1ma)
(!!!!!) (Best Pair) JG-5751WA GE gray plates triple mica U getter like new 1955 (2.3/2.1ma and 2.2/2.1ma)
(!!!!) (Recommended Single) JG-5751WA GE NOS black plates triple mica D getter halo 1955 (2.1/2.5ma)
(!!) (Best Single) JG-5814A=12AU7WA GE triple mica NOS 1958-1959 (9.6/9.4ma)
JG-6021 GE gray plates NOS 1962 (6.4/5.5ma)
(!!!!!) (Recommended Single) JG-6072 GE triple mica black plates "O" getter NOS 1962 (3.1/3.2ma) (AKG, Tele 251, Peluso, Rode) (similar sound to 5-Star GE) (same Gm)
(!) JHS-0A2WA Sylvania used/test like new 1966 (1 pair)
(!!) (slightly microphonic) JHS-12AT7 Sylvania black plate "D" getter 1953 (11.2ma/11.2ma) 1% section balance
(!!) (Recommended from 1958) JHS-12AT7WA Sylvania triple mica "D" getter NOS 1958 (11.6/15ma) (phase inverter, reverb)
JHS-12AU7 Sylvania "black plates" with "D" getter used/mis-matched sections (7.6/12ma)
(!!!) (Best Single 1965) JHS-12AX7WA Sylvania NOS 1965 (1.3/1.5ma and Gm=1700/1800)
(!!!) (Good Value Pair) JHS-5687WA Sylvania used/very good 1960's faded printing (35.4/34.2ma and 37.0/36.5ma)
JHS-5749=6BA6W Sylvania NOS 1958 (9.2ma)
(!!!) (Recommended Single) JHS-6005 Sylvania NOS coated glass 1966 (46.5ma)
(!!!) JHS-6189=12AU7WA Sylvania NOS 1966 in white box (8.5/10.2ma)
JHS-6J6WA Sylvania NOS "D" getter halo 1960 era (2 in stock)
JHS-6U8A Sylvania NOS 1966
(!!!) FAA-6X4WA Sylvania NOS 1965 (55/40 and 57/40)
JHY-6AK5 Hytron black plate NOS 1952 in white box (9.2ma)
(!!) (Recommended Single 1961) JLRV-12AT7WA=6201 GE Canada gray plates triple mica "U" getter NOS 1961 (9/12ma)
JLRV-6005 GE Canada black plate NOS 1960's
(!!!) (Recommended Pair) JLRV-6J6WA GE Canada NOS 1960's (6.4/6.6ma and 6.6/6.5ma)
JRC-6J6 RCA NOS "D" getter halo 1954 (4 in stock)
(!!!) (Recommended Single) JRP-12AX7 Raytheon Black Plates NOS 1962 (Gm=1450/1600) (1.0/1.3ma)
(!!!!) (Good Value Single) JRP-12AX7 Raytheon Black Plates NOS 1962 (Gm=1300/1600) (0.7/1.1ma)
(!!!!) (Best Value Single) 12AX7 Raytheon Black Plates NOS 1962 (.9/1.1ma and Gm=1400/1600)
(microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1957 (31/31ma)
(slightly microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1956 (40.5/45.5ma)
(!!) (Good Value Single) JRP-5687WA Raytheon bronze plates used/good early 1960's (33/31.6ma)
JTL-26Z5W Tungsol used/tests very good 1953
(!!!) (Best Single) JW-6028=408A Western Electric "D" getter NOS 1954 (105/60)
K49B Marshall used/good 1940's white flakes inside tube (180ohms and 160ohms)
K80B JFD Ballast NOS some corrosion on metal can (937ohms and 890ohms)
K80B JFD Ballast NOS (590ohms and 558ohms)
K92B JFD Ballast NOS (420ohms and 325ohms)
KL-75 Amperite ballast used
KT66 GEC UK brown base used/70% 1966 (64ma)
(!!!) (Single) KT66 Osram UK brown base used 1950's (62ma) (Gm=65%)
KT77 Gold Lion brown base used/very good, top getter like new, 1978-1979 (81ma) (Gm=11,900 like new)
KT8 GEC England NOS 1950's (65.2ma)
KT88 GEC England used/tests like new 1962 in white box (145ma)
KT88 GEC England like new condition 1965 original box (125ma)
(!!!!!) (Recommended Single) KT88 GEC UK used/tests like new 1960's (137.6ma, Gm=10,800)
(!!!) (Best Single) KT88 Genalex England NOS 1967 rebranded SC1000 Stromberg-Carlson (147ma)
KX-23/R ballast used/good (78 ohms)
M73B ballast NOS (317 ohms and 337 ohms)
(!!!!!) (Recommended Single) M8137=CV4004=12AX7 Mullard branded Philips box plates NOS 1966 (Gm=1500/1400 and 1.0/0.8mA)
Magnetek FD7-28 transformer NOS
80uf/400VDC, 80uf/200VDC, 4uf/150V, 100uf/50VDC Mallory FP NOS 3.5"H x 1.375" dia (FP420.407)
30/400, 500/50VDC Mallory or Sprague FP cap NOS 1" diameter x 3" H
(!!!) (MATCHED QUAD) JAN-CW-231D Western Electric NOS 1953 (1.6/1.6/1.6/1.5ma) 1-2% matched
MC-1 750 Jennings vacuum cap
(BEST PRICE) Metal Can Cap Cover for 1" diameter cans with up to 4" height (4 for $9.99)
Metal Can Cap Cover for 1" diameter cans with up to 4" height (14 in stock)
(microphonic tube) JRP-5687 Raytheon NOS black plates D getter NOS 1956 (36/41ma)
(!!!!!) (Nice Single) ECC82=12AU7 Telefunken Germany <> bottom ribbed plates used/good 1957 (8.5/8.2ma) (strong Gm)
NL-5992 National USA NOS nixie tube
NY-224 National Union Balloon used/good 1930's (42/25) (2.4ma Gm=800)
NY-224 National Union Balloon used/good 1930's (38/25) (3.3ma Gm=800)
(!) NY-247=47 National Union Balloon used/good 1930's (22.6ma) (and strong Gm)
(!!) (Pair) 0B3 Sylvania NOS 1960-1970 (argon)
(PAIR) 0C3A Russian rebranded OC3 GE Germany NOS 1977 (1 pair) (Copy)
(PAIR) 0D3A Russian rebranded GE Holland NOS 1980 (1 pair)
(PAIR) 12AX4GTA RCA NOS 1960 era (1 pair)
(!) (PAIR) 12SJ7 RCA 1960's NOS rebranded United 1982 (3.2ma and 3.2ma)
(!) (PAIR) 12SJ7 RCA NOS 1958 (2.8ma and 2.4ma)
(!!!) (PAIR) 25L6GT Westinghouse NOS 1962-1963 (88/60 and 90/60)
(PAIR) 25Z5 GE NOS 1961-1962
(!) (2nd Best Pair) 2A5 Sylvania NOS 1947 (83/50 and 83/50)
(!) (PAIR) 2C26 Hytron NOS 1944 (73/38 and 76/38)
(!) (PAIR) 2C26 Hytron NOS 1944 (68/38 and 72/38)
(!) (PAIR) 2C26 National Union NOS 1940's (67/38 and 69/38)
(!) (Pair) 37 Tungsol engraved base 1930's used/test strong (6.8ma and 7.6ma)
(PAIR) JAN-CW-3B24 Western Electric engraved base 1930's (60-60/40 x 2 tubes)
(PAIR) JAN-CW-3B24 Western Electric engraved base tests like new 1930's (59-60/40 x 2 tubes)
(!) (Pair) 404A Western Electric used/good 1963-1969 (16.5ma and 17.6ma)
(!!) (PAIR) 5750=6BE6W Sylvania JAN NOS 1970's (1.5/1.5ma)
(!) (PAIR) 5BQ7A Dumont by GE gray plates NOS 1973 "U" and "O" getter (7.0/7.4ma and 7.0/6.6ma)
(!) (PAIR) 5BQ7A Dumont by GE gray plates NOS 1973 (8.3/8.0ma and 8.6/9.8ma)
(!!!!) (Pair) 5Y3GT Philips Holland NOS 1960's (60-65/40 and 60-66/40)
(!!!) (PAIR 1950's) 6350 Sylvania black plates "D" getter NOS 1950's (11/9ma and 11.4/9.2ma)
(PAIR) 6AG7Y GE NOS 1973 (25/26ma)
(PAIR) 6AG7Y GE NOS (26.5/27ma)
(!!!) (PAIR) 6AL5 RCA NOS 1970 era (47-47/40 and 47-47/40) (Copy)
(PAIR) 6AS6 GE gray plate NOS 1961 (4.3ma and 4.5ma)
(PAIR) 6AS6 RCA gray plate NOS 1963-1971 (5.6ma and 5.8ma)
(!!) (PAIR) 6AU4GTA GE coin-base NOS 1970's
(PAIR) 6AX4GT RCA used/very good (54/40 and 54/40)
(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (100ma and 109ma)
(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (82ma and 83ma)
(!!!!) (Pair) 6B4G Raytheon NOS 1940's - 1 tube branded Tungsol - same build - separate plates (86ma and 92ma)
(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (48.5ma and 48.6ma)
(!!) (PAIR) 6BQ6GTB=6CU6 Sylvania NOS 1960's (51ma and 52.5ma)
(!) (PAIR) 6BR8A RCA NOS 1966
(!!!) (Pair) 6C5 Raytheon metal can NOS 1950 (7ma and 8ma)
(!!) (PAIR) 6CB6A RCA NOS 1960's - 1970's (7ma and 7ma)
(!!) (PAIR) 6CB6A RCA NOS (8.2ma and 8.5ma)
(!!) (PAIR) 6CB6A RCA Tektronix Checked NOS (8.0ma and 8.3ma)
(!!) (BEST VALUE PAIR) 6CJ3=6DW4 El-Menco and Realistic Japan NOS 1960's
(!!) (PAIR) 6CL6 RCA NOS 1966-1967 (25.0ma and 26.6ma)
(PAIR) 6DW4B Raytheon Japan NOS 1960's (82-82/60)
(!!!) (PAIR) 6HF5 Sylvania NOS 1970's (96ma and 97ma)
6HV5A GE branded RCA NOS (101/60)
(!) (PAIR) 6K7GT=VT-86B Sylvania JAN used/strong 1940's (9.8ma and 9.6ma) (same Gm)
(!!) (Pair) 6S4A GE NOS 1969-1970 (24.0ma and 25.5ma)
(PAIR) 85A2=0G3 Amperex Holland NOS 1966 (1 pair)
(PAIR) 85A2=0G3 Mullard UK NOS 1960-1961 (1 pair)
(PAIR) E81L=6686 Siemens East Germany NOS 1976 (20ma and 20.5ma)
(!!) (PAIR) E81L=6686 Siemens made By Valvo, Hamburg, Germany NOS 1968 (13.4ma and 13.8ma)
(!!) (PAIR) E81L=6686 Siemens made By Valvo, Hamburg, Germany NOS 1968-1972 (18.4ma and 18.5ma)
(!!!!) (Pair) ECL86=6GW8 Siemens Halske branded Telefunken Germany NOS 1971 (1.0/1.3ma and 43ma/44ma)
(!!!) (PAIR) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.2ma and 7.2ma)
(!!) (Pair) EL822 Mullard black plate NOS 1973-1974 (40ma and 41ma)
(!!!!) (Pair) JAN-5842WA Raytheon NOS 1984 (18.0ma and 18.4ma) 1-2% matched
(!) (PAIR) JAN-CRP-3B24 Raytheon like new 1940's (60/40 and 60/40)
(!!!) USN-CRC-1629=VT-138 RCA NOS 1940 (bright eye) (oldest single)
PCC85=9AQ8 Funkwerk RFT Germany NOS 1958 in white box (12.6/12.4ma)
PCC85=9AQ8 Funkwerk RFT Germany NOS 1958 in white box (13.5/16.0ma)
(!!!!) (Good Value Single 1970) PCC88=7DJ8 Amperex Holland "A" frame NOS 1970 (11.4/12ma)
(!!) (Single) PCC88=7DJ8 Philips Holland 1973 (9.5/10.6ma)
(!!!!!) (Recommended Pair) PCC88=7DJ8 Philips Holland NOS 1973 (11.5/11.0ma and 11.5/12ma) (Similar sound to 6DJ8 Holland) (sweet sound)
(!!!!) (Best Pair 1968) PCC88=7DJ8 Philips Holland "O" getter NOS 1968 (14/14ma and 13.5/13.2ma) (sweet sound)
(!!!) (Recommended Single) PCC88=7DJ8 Siemens Germany NOS 1972 (11.5/12.2ma)
(!) (Recommended Single) PCC88=7DJ8 Tesla NOS 1968 (12.5/15.5ma)
PZ=47 Arcturus Blue NOS low emission (display tube)
QQE03/20=6252 Philips NOS
(BEST PRICE) QQE03/20=6252 Philips NOS (4 tubes for $99.99)
R928 Hamamatsu Photomultiplier tube NOS
80 Raytheon engraved base used/good 1930's rattle inside base (51/40 and 57/40)
(!!!) (Recomended Balloon 50) CX-350 Cunningham Balloon used/good 1930 era - very good condition (44.2ma) (rare 50)
(!!!!!) (Recommended 5 Star Single) 5751 GE "5 Star" gray plates triple mica "O" getter 1959 like new (2.5/2.4ma)
(!!!!!) (Recommended 5 Star Single) 5751 GE "5 Star" gray plates triple mica "O" getter 1960 like new (2.2/2.1ma) (same Gm)
(!!!) (Recommended Pair) 12SL7GT RCA black plates NOS 1974 (2.1/2.2ma and 2.3/2.4ma) (same Gm)
(!) (Recommended Pair) 0B2 GE Holland made in Japan NOS 1970's (argon gas)
(!!) (Recommended Pair) 0B2 Haltron France like new 1961 (argon gas)
(!!) (Recommended Pair) 0B2 RCA NOS 1970 (neon gas)
(!!!!) (Best Pair) 12AT7=6679 GE gray plates NOS (9.5/10ma and 9.8/10.5ma)
(!!!) (Recommended Pair) 12AT7 RCA gray plates NOS 1974 (10.5/7.5ma and 10.8/8.2ma)
(!!) (Recommended Pair) 12AX4GTA RCA NOS 1960 (98-99/60)
(!!!) (Recommended Pair) 12AZ7A GE Admiral black plates NOS 1960 (10/9ma and 9.2/10.5ma) (McIntosh MC275)
(!!) (Recommended Pair) 12AZ7A GE Admiral black plates NOS 1960 (8/9ma and 8/10ma) (McIntosh MC275)
(!!) (Recommended Pair) 12AZ7=12AZ7A GE branded Admiral/Westinghouse black plates NOS 1960 (9.0/9.4ma and 9.2/8.0ma) (McIntosh MC275)
(!!!) (Recommended Pair) 12AZ7A Hitachi branded Raytheon Japan gray plates NOS 1960's (10.0/10.8ma and 9.6/10.7ma)
(!!) (Recommended Pair) 12HG7=12GN7A Sylvania NOS 1970 era (42ma and 43ma)
(!!!) (Recommended Pair) 12SN7GTA GE coin-base side getter NOS 1980 (9.0/8.8ma and 8.6/9.0ma) 1-3% matched (Same Gm)
(!!!) (Recommended PAIR 1953) JAN-CW-231D Western Electric NOS 1953 (1.5ma and 1.5ma)
(!!!) (Recommended PAIR 1953) JAN-CW-231D Western Electric NOS 1953 (1.8ma and 1.8ma)
(!!!) (Best Pair 1957) 5Z3G RCA NOS 1957 in gold colored boxes slightly tilted glass (59-60/40 and 60-60/40)
(!!!) (Recommended Pair 1957) 5Z3G RCA NOS 1957 in gold colored boxes slightly tilted glass (57-61/40 and 57-62/40)
(!!!!!) (Best Pair 1959) 6DJ8=ECC88 Philips Miniwatt Holland large "O" getter halo NOS 1959 etched section on each tube (18.6/15.4ma and 16.4/15.8ma)
(!!!) (Recommended Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/1.9ma and 1.9/1.8ma) (same Gm)
(!!!!) (Best Pair 1963) JG-5751 GE double mica gray plates NOS 1963 (2.0/2.2ma and 2.0/2.1ma)
(!!!!) (Recommended Pair 1970's) 417A Western Electric NOS 1973-1977 (27ma and 31.2ma)
(!!!) (Recommended Pair) 26 GE and Ken Rad NOS same build 1940's (3.9ma and 4.0ma)
(!!!) (Recommended Pair) 26 Sylvania branded Zenith black plate NOS 1946 (4.9ma and 5.0ma) (rare) 1% matched
(!!!!) (Recommended Pair) 27 Philco by Sylvania NOS 1940's (6.0ma and 6.3ma)
(!!!) (Recommended Pair) 30 RCA Cunningham engraved base 1930's low hours/test like new (3.3ma and 3.4ma)
(!!!!) (Recommended Pair) 30 Sylvania NOS 1940's (3.0ma and 3.1ma)
(!!!!) (Best Pair) 311B Amperex made in Russia NOS 1977 (34.2ma and 34.5ma) (very good construction)
(!!!) (2nd Best Pair) 311B Amperex made in Russia NOS 1977 (31.8ma and 33.2ma) (very good construction)
(!!!!) (Recommended Pair) 403B Western Electric NOS "D" getter 1969 (5.7/5.6ma) 1-2% matched
(!!!) (Recommended Pair) 407A Western Electric NOS "O" getter 1972-1983 (40-40/26 and 42-43/26)
(!!!) (Recommended Pair) 407A Western Electric NOS "O" getter 1978 (35-43/26 and 37-43/26)
(!!!) (Recommended Pair) 407A Western Electric used/good 1963-1964 (35-38/26 and 36-38/26)
(!!!!) (Recommended Pair) 417A Western Electric NOS 1969 (28ma and 33ma)
(!!!!) (Recommended Pair) 417A Western Electric NOS 1980 (32ma and 34ma)
(!!!) (Best Pair #4) 448A Western Electric tipped top used/tests like new 1965 (26.4ma and 26.8ma)
(!) (Recommended Pair) 5651 GE USA made for GE Canada NOS (1 pair)
(!!) (Recommended Pair) 5879 RCA branded Raytheon NOS 1960's (2.2ma and 2.4ma)
(!!) (Recommended Pair) 5879 RCA branded Raytheon triple mica D getter NOS early 1960's (1.8ma and 1.5ma)
(!!!) (Recommended Pair) 5881 Sylvania black base NOS 1970's same build (65ma and 67ma)
(!!!!) (Recommended PAIR) 5998A Sylvania JAN NOS 1980 (144/131ma and 138/144ma) (5998A=7236)
(!!!!!) (Recommended Pair) 5U4GB HYTRON NOS 1960 "O" getter halos (56-58/40 and 57-58/40)
(!!!!) (Recommended PAIR) 5U4GB Raytheon NOS "O" getters 1962 (58-60/40 x 2 tubes)
(!!!) (Best Pair for the money) 5Y3GT Philips Holland NOS 1960's (58-63/40 and 58-64/40)
(!!!) (Best Value Pair) 5Y3GT Philips Holland NOS 1960's (60-68/40 and 60-69/40)
(!!!) (Recommended PAIR) 6463 GE NOS 1965 (15.0/16.4ma and 15.6/15.8ma) (same pinout as 6350)
(!!!) (Recommended Pair) 6AC7 RCA NOS 1950's (11.5ma and 12.2ma)
(!!!) (Recommended Pair) 6AC7 RCA NOS 1970 era (10.0ma and 10.5ma)
(!!) (Recommended Pair) 6AE5GT Tungsol branded RCA NOS 1940's (6.7ma and 6.8ma)
(!!) (Recommended Pair) 6AG7 RCA NOS 1960's (30.6ma and 32ma)
(!!) (Recommended Pair) 6AG7 RCA NOS 1960's same date codes (27.5ma and 29.2ma)
(!) (Recommended Pair) 6AH6WA GE NOS 1983 (9.0/9.4ma)
(!) (Recommended Pair) 6AH6WA GE NOS 1980's (9.6/10ma)
(!!!!) (Best Value Pair) 6B4G Raytheon NOS 1940's separate plates, 1 branded Philco (90ma and 91.5ma)
(!!!) (Recommended Pair) 6BK7B Tungsol black plates NOS "O" getter 1960's (7.5/8.6ma and 8.2/9.4ma)
(!!!) (Recommended Pair) 6BK7B Tungsol gray plates NOS "O" getter 1960's (10/11ma and 10.6/13.2ma)
(!!!) (Recommended Pair) 6BQ5 Sylvania gray plate NOS (46.6ma and 47.6ma)
(!!!) (Recommended Pair) 6BQ7A RCA black plates NOS 1967 (16.5/14ma and 15.5/18ma)
(!!!!) (Recommended Pair) 6BQ7A RCA black plates NOS 1967 same date codes (11.8/12ma and 11/12.2ma)
(!!!!) (Recommended Pair) 6CA4 RFT East Germany (Funkwerk) NOS 1970's (47-48/40 and 48-48/40)
(!!) (Recommended Pair) 6CB5A Sylvania branded Dumont NOS 1960's (58ma and 60ma)
(!!) (Recommended Pair) 6CB5A Sylvania branded Dumont NOS 1964-1966 (65ma and 66ma)
(!!) (Recommended Pair) 6CM7 GE NOS 1964-1966 (5.1/4.3ma and 16.5/16.6ma)
(!!) (Recommended Pair) 6DQ5 Sylvania NOS 1960's (93ma and 100ma)
(!!) (Recommended Pair) 6DQ5 Sylvania NOS (76ma and 73ma)
(!!!!!) (Recommended Pair) 6EM7 Sylvania coin-base NOS 1970's (1.8ma/40ma and 2.3ma/43ma)
(!!!!) (Best Pair #2) 6F6G Marconi Spain NOS 1940's (37.5ma and 39ma)
(!!!) (Recommended PAIR) 6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (11.5/11.5ma and 11.7/11.9ma)
(!!!) (Recommended PAIR) 6GH8A GE by EI Yugoslavia NOS copper grid posts 1970's (12.2/12.5ma and 12.5/12.4ma)
(!!) (Recommended Pair) 6GK5=6FQ5A GE NOS 1968-1981 (10.4ma and 11.2ma)
(!!!) (Recommended Pair) 6GK5=6FQ5A Sylvania rebranded Raytheon NOS (8.2ma and 8.3ma)
(!!!) (Recommended Pair) 6GK5=6FQ5A Toshiba Japan rebranded Raytheon NOS (8.7ma and 9.7ma)
(!!!) (Recommended Pair) 6HA5=6HM5=EC900 Amperex Holland "Globe Logo" NOS in white boxes 1971-1972 (10.4ma and 10.6ma)
(!!) (Recommended Pair) 6HF5 Sylvania NOS 1960's (93ma and 97ma)
(!!!!) (Best KR Pair) 6J5GT Ken Rad black ribbed plates NOS 1942 (9.8ma and 9.4ma)
(!!!!) (Best Pair) 6J5GT Ken Rad black round plates NOS 1942 (9.6ma and 9.8ma)
(!!!!) (Best Value Pair) 6J5GT Raytheon metal base black ribbed plate NOS 1940's (9.6ma and 9.8ma) (1-3% matched)
(!!) (Recommended Pair) 6J6A Tungsol NOS "D" getter 1961 (7.5/8.8ma and 7.8/9.2ma)
(!!!) (Recommended Pair) 6JT6A RCA NOS 1970 era (73.2ma and 74.4ma)
(!!!) (Recommended Pair) 6JT6A RCA branded GE NOS 1979 (78ma and 80ma)
(!!) (Best Pair #1) 6K11=6Q11 GE NOS 1979 (1 pair)
(!!) (Recommended Pair) 6KM6 GE branded Westinghouse NOS (152ma and 155ma)
(!!!) (Recommended Pair) 6L6WGB=5881 Sylvania black base NOS 1980-1987 same build (86ma and 91ma)
(!!) (Recommended Pair) 6SH7 GE metal can NOS 1976 (10.2ma and 10.2ma) **
(!!) (Recommended Pair) 6SH7 GE metal can NOS 1976 (11ma and 11ma) **
(!!) (Recommended Pair) 6SH7 GE metal can NOS 1976 (12ma and 13ma) **
(!!) (Recommended Pair) 6SH7 GE metal can NOS 1976 (9ma and 8.6ma) **
(!!!!) (Recommended Pair) 6SN7GTA GE "U" getter halo - side getter - copper grid posts NOS 1951-1953 (7.0/7.8ma and 7.8/7.2ma) (close Gm)
(!!!!) (Recommended Pair) 6SN7GTB GE NOS 1966-1968 (8.4/10ma and 8.8/8.0ma) (close Gm) (Schiit Freya, Rogue)
(!!!!) (Recommended Pair) 6U8A Philips by Sylvania NOS 1986 (15.5/16.0ma and 8.4/8.0ma)
(!!!) (Recommended Pair) 6V6 Sylvania metal can NOS 1970 era (42.6ma and 42.8ma)
(!!!) (Recommended Pair) 6V6 Sylvania metal can NOS 1970 era (44.8ma and 45.2ma)
(!!!!) (Recommended Pair) 6V6GT Sylvania green leaf coated glass NOS 1940's in white boxes (35ma and 37ma)
(!!!) (Recommended Pair) 6V6GTA Sylvania NOS 1960's - 1970 (45.5ma and 48.5ma)
(!!!) (Recommended Pair) 6V6GTA Sylvania NOS 1970 era same build (40ma and 41ma)
(!!!!) (Recommended Pair) JAN-CRC-6V6Y RCA metal can brown bottom NOS 1954 (40.2ma and 43.8ma)
(!!!!) (Recommended Pair) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's 1-2% matched (53-55/40 x 2 tubes)
(!!) (Recommended Pair) 6Y6GA Sylvania NOS same build (51ma and 55.5ma)
(!) (Recommended Pair) 76 Sylvania black plate branded Tungsol and Westinghouse NOS 1946 (5.6ma and 5.4ma)
(!!) (Recommended Pair) 8417 Sylvania branded RCA NOS 1960's - 1970 (106ma and 108ma)
(!!) (Recommended Pair) 8417 Sylvania NOS 1970 era same date codes (109ma and 104.5ma)
(!!!!) (Recommended Pair) 8D8=EF86 Brimar UK quad mica NOS 1961 (3.1ma and 3.2ma) 1-2% matched
(!!!!) (Recommended Pair) CV1067=6J5G GEC (M-O Valve) UK coated glass NOS 1950's (7.2ma and 7.2ma) 1-2% matched
(!!!!) (Recommended Pair) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (10.4/11.4ma and 10.0/11.0ma)
(!!!!) (Recommended Pair) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.0/10.4ma and 9.4/10.0ma) 1-3% matched
(!!!!) (Recommended Pair) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.6/8.8ma and 9.4/9.0ma) 1-2% matched
(!!) (Recommended Pair) ECC40 Philips NOS made by La Radiotechnique, Chartres/France 1969 (5.5/5.6ma and 5.5/6.0ma)
(!!!!) (Recommended Pair) ECC83=12AX7 Tungsram Hungary branded IEC Mullard NOS 1982 (1.5/1.6ma and 1.4/1.7ma)
(!!!!) (Recommended Pair) GB-6136=6AU6 Sylvania Gold Brand Gold Pins NOS 1960's (6.3ma and 6.3ma) 1% matched
(!!!!) (Recommended Pair) JAN-12AT7WC Philips by Sylvania black plates NOS 1981-1982 (8.3/8.4ma and 8.4/7.8ma)
(!!!!) (Recommended Pair) JAN-5755 Raytheon Black Plates NOS 1971-1979 (1.5/1.7ma and 1.5/1.8ma)
(!!!!) (Best Pair #2) JAN-5755 Raytheon Black Plates NOS 1973 (1.6/1.7ma and 1.7/1.8ma) (High Gm)
(!!!!) (Best Pair) JAN-6189=12AU7WA Sylvania NOS 1972-1973 (9.3/10.4ma and 9.6/10.6ma) 1-3% matched
(!!!) (Recommended Pair) JAN-6384 Tungsol used/test like new 1970-1972 (62.5ma and 66ma)
(!!) (recommended Pair) JAN-CRC-50L6GT RCA NOS 1955 (90/60 and 95/60)
(!!!) (Recommended Pair) JHY-6AK5 Hytron black plate NOS 1952 (5.8ma and 5.8ma)
(!!!) (Best Pair) JHY-6AK5 Hytron black plate NOS 1952 (9.4ma and 9.8ma)
(!!!!) (Best Pair #2) JHY-6AK5 Hytron black plate NOS 1952 (8.9ma and 9.3ma)
(!!!) (Recommended Pair) JLRV-6J6WA GE Canada NOS 1960's (7.3/6.6ma and 6.8/7.5ma)
(!!!!) (Recommended Pair) PCC88=7DJ8 Philips Holland NOS 1973 (12.4/10.5ma and 11.0/10.6ma) (Similar sound to 6DJ8 Holland) (sweet sound)
(!!) (Recommended Pair) USN-CRC-6AC7=VT-112 RCA 1942-1944 used/very good (9.4/9.6ma) 1-3% matched
(!!) (Recommended Pairs) 12AX4GTB Sylvania NOS 1960's (8 pairs)
(!!!) (Recommended Quad) 5Y3GT Philips Holland NOS 1960's (1 set of 4)
(!!!) (Recommended Quad) 6V6 GE metal can NOS 1976 (35.0, 35.2, 35.2, 35.6mA)
(!!!) (Recommended Quad) 6V6 GE metal can NOS 1976 (34.0, 34.6, 35, 35mA)
(!!!) (Recommended Quad) 6V6 Sylvania metal can NOS 1970 era (39.6, 39.8, 40.0, 40.2mA)
(!!!) (Recommended Quad) 6V6 Sylvania metal can NOS 1970 era (35.0, 35.4, 35.8, 35.8mA)
(!!!) (Recommended Quad) 8D8=EF86 Brimar UK quad mica NOS 1961 (2.8/3.0/3.0/3.0ma) 1-3% matched
(!!!!) (Best Overall Quad) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.8/8.8, 8.8/8.8, 8.6/8.8, 8.6/9.0mA)
(!!!!) (Best CV4003 Quad) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.4/9.0, 8.4/9.0, 8.4/8.8, 8.4/8.8mA)
(!!!!) (Best Quad) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.8/9.5, 8.8/9.4, 9.0/9.3, 9.0/9.4mA) (Highest Gm 1-2% matched)
(!!!!) (Recommended RCA Single) 6V6G RCA branded Haltron coated glass NOS 1940's (42ma)
(!!!) (Recommended Single) 12AT7=ECC81 Mullard shield logo used/tests like new 1963 (15.8/14.8ma)
(!!!) (Recommended Single) 12AT7 Fisher Telefunken Germany <> bottom NOS 1964 (9ma/6.5ma) (recommended for mic)
(!!!) (Recommended Single) 12AT7 Telefunken Germany <> bottom NOS 1963 (12ma/15ma)
(!!!) (Recommended Single) 12AU7A RCA clear top NOS 1960 era (9.6/9.8ma) (Same Gm)
(!!!) (Recommended Single) 12AU7A RCA clear top NOS 1969 (8.4/8.2ma)
(!!!) (Recommended Single) 12AY7 GE NOS 1970 (2.0/2.3ma)
(!!!) (Single 1956) 12AY7 GE "D" getter like new 1956 (3.1/2.8ma)
(!!!) (Recommended Single) 12BH7A CBS Oval Black Plates "O" getter NOS 1960 (11/12.5ma)
(!!!) (Slightly microphonic Single) 12BH7A CBS Oval Black Plates "U" getter NOS 1960 era (8.4/9.0ma)
(!!!!) (Recommended Single) 12BH7A Sylvania Hammond gray oval plates "D" getter halo used/like new 1959 (10.2/10.6ma)
(!!!) (Recommended Single) 12BH7A Westinghouse black ribbed plates "U" getter halo 1961 (8.5/10ma)
(!!!!) (Recommended Single 1957) 12AX7 BRIMAR England NOS gray ribbed plates "O" getter 1957 (1.3/1.2ma) (Gm=1700/1900)
(!!) (recommended single 1957) CV455=12AT7 Mullard "D" getter like new 1957 (12.4/8.6ma)
(!!!) (Recommended Single) ECC83=12AX7 Mullard Webcor ribbed plates used/good 1962 (161 series) in white box (1.0/0.7ma and Gm=1600/1400)
(!!!) (Best Single 1963) JG-5751 GE double mica gray plates NOS 1963 (2.7/2.7ma) (1-2% section balance)
(!!) (Recommended Single) 47 Raytheon NOS 1955 (35.6ma Gm=2680)
(!!) (Recommended Single) 47 Sylvania NOS 1952 (38.6ma Gm=2750)
(!!!!) (Single) 5692 RCA RED BASE black plates used/good 1953 (7/8ma) (Schiit Saga+)
(!!) (Recommended Single) 5814A=12AU7 Hyperlec Brive France (Holland clone) NOS 1970's rebranded National (10.0/11.6ma)
(!!!!!) (Recommended Pair) 5881 GE Canada NOS 1966-1967 (65.2ma and 68.5ma) (same build as Tungsol)
(!!!) (Recommended Single) 5881 Tungsol like new 1957 (86ma)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (115/111mA)
(!!!) (Recommended Single) 5998A Sylvania JAN NOS 1980 (112/119mA)
(!!!) (Recommended Single) 5Z3G RCA NOS 1957 (57/40 and 58/40)
(!!) (Recommended Single) 6106 Bendix rebranded 5Y3WGTA Heintz & Kaufman NOS (66/40 and 69/40)
(!!) (Recommended Single) 6550A GE branded Westinghouse stapled plates NOS 1980 era (129ma)
(!!) (Recommended Single) 6AK5 Tungsol gray plate NOS 1956 (8.3ma)
(!!) (Recommended Single) 6AN8A Sylvania NOS 1960's (16.4/11.5ma)
(!!!!) (Best Value Single) 6AS7G RCA gray plates NOS 1971 (60ma/78ma)
(!!!) (Recommended Single) 6BQ7A RCA black plates NOS 1962 (10/14ma)
(!!!) (Recommended Single) 6BZ7 RCA black plates large "O" getter NOS 1965 (13.0/14.2ma)
(!!!!) (Recommended Single) 6SL7WGT Sylvania brown base round black plates "D" getter tests like new 1957 (2.1/2.3ma)
(!!) (Recommended Single) 6U8A GE NOS 1977 (14.2ma/10ma)
(!!) (Recommended Single) 6V6GT GE coated glass NOS 1952 (56ma)
(!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (53/40 and 54/40)
(!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (54/40 and 56/40)
(!!!) (Recommended Single) 6X4 SER = LM Ericsson Sweden "D" getter NOS 1950's (54/40 and 55/40)
(!!!) (Best Single 1943) 6X5GT=VT-126B RCA black plates NOS 1943 (55/40 and 58/40)
(!!!!) (Recommended Single) 7199 RCA black plates NOS 1960's (19.5ma pentode / 8ma triode)
(!!!) (Recommended Single) C-299=UV-99 Cunningham NOS 1920's with tube data sheet (2.4ma) (highest Ma) (UV have small pins) (strong Gm)
(!!!) (Recommended Single) C-299=UV-99 Cunningham NOS 1920's with tube data sheet (2.6ma) (highest Ma) (UV have small pins) (strong Gm)
(!!!!) (Recommended Single) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (8.6/11.3mA)
(!!!!) (Recommended Single) CV4003=12AU7=6189 Mullard UK NOS 1978 rebranded "6189 RTC" 1981 (9.6/10.8mA)
(!!!!) (Recommended Single) CV4004=12AX7 Mullard box plates NOS 1971-1972 (Gm=1500/1500) (1.0/1.1ma)
(!!!!) (Recommended Single) CV4004=12AX7 Mullard box plates NOS 1981 (Gm=1500/1600) (0.9/1.2ma)
(!!!!) (Recommended Single) CV4004=12AX7 Mullard box plates NOS 1981 (Gm=1500/1600) (0.9/1.1ma)
(!!!!!) (Recommended Single) CV4035=M8214=12AX7 Brimar England NOS flying leads 1960's (solder leads into ckt)
(!!!!!) (Recommended Single) CV4035=M8214=12AX7 Mullard England box plates NOS flying leads 1961 (solder leads into ckt)
(!!!) (Recommended Single) CV491=12AU7=ECC82 Brimar England NOS ribbed plates 1974 (9.4/9.2ma)
(!!!!) (Recommended Single) E188CC=7308 Telefunken <> bottom gold pins low hours/tests like new (16.0ma/16.2ma) (rare)
(!!!!) (Recommended Single) E188CC=7308 Telefunken <> bottom gold pins NOS 1960's (12.6ma/19ma) (rare)
(!!!!!) (Recommended Single) ECC83=12AX7A Tungsram Hungary branded RCA NOS 1970's (Gm=1700/1900) (1.0/1.4ma)
(!!!!) (Recommended Single) EF86 Telefunken Germany <> bottom NOS gray shield 1972 (2.9ma) (Neumann, Lawson, Soundelux, Manley)
(!!!) (Recommended Single) EZ80 Mullard France NOS "O" getter halo 1970 (62/40 and 64/40)
(!!!) (Best Single) EZ80 Mullard France NOS "O" getter halo 1970 (64/40 and 64/40)
(!!!!) (Best Single 1975) GZ34 Mullard UK NOS 1975 (59/40 and 60/40)
(!!!!) (Recommended Single) JAN-7308 Raytheon NOS 1968 (10.4/15.2ma)
(!!!!) (Recommended Single) JAN-CEA-5852=6X5GT Bendix NOS 1953 (64/40 and 66/40) (Best Audio Grade 6X5GT) (Audio Note) (2 in stock)
(!!) (Recommended SINGLE) JG-6C4WA GE JAN triple mica NOS 1964-1965 (9.2ma)
(!!!) (Best Pair) JRP-5687WA and JAN-5687WA Raytheon bronze plates tests like new 1964 era faded printing (33.4/36.4ma and 33.5/33.0ma)
(!!!) (Recommended Single) JTL-6X4W Tungsol NOS 1955 curved "D" getter (49/40 and 52/40)
(!) (Recommended Single) PCC88=7DJ8 Tesla NOS 1968 (13.2/14.0ma)
(!!!) (Recommended Tungsol Single) JAN-6384 Tungsol NOS 1972 (62ma)
RG62 Telefunken like new 1940's (1 in stock)
RK-73 Raytheon NOS (10 in stock)
(BEST PRICE) RK-73 Raytheon NOS (4 tubes for $19.99)
(BEST PRICE) RL12P35 Telefunken Germany Wehrmacht NOS 1940's (4 for $299.99)
RL12P35 Telefunken Germany Wehrmacht NOS 1944 (103.5ma) (tested on Amplitrex)
RV12P4000 Valvo Germany used/like new WWII era 1945 (1 in stock)
(!) RY-247=47 Federal Supreme Balloon used/good 1930's (24.2ma)
(!!!!) (Set of 10) 5842Q Raytheon NOS 1983 (10 tubes for $279.99) (all test between 19ma-24ma
(!!!) (Best Value - Set of 10) 864=VT-24 Hytron USA NOS 1940's (10 for $319.99)
(!) (SET OF 3) 6SK7 RCA used/good 1940's (7.5ma/7.8ma/7.8ma) (good value)
(set of 4) 12AL5 RCA NOS (4 for $17.99)
(!!) (set of 4) JG-5725=6AS6W GE "D" getter NOS 1956 (4 tubes for $10.99)
(!!!!!) (Set of 4) 6J5GT Raytheon black ribbed plate NOS 1950 era (set of 4 tubes between 7-10ma)
(!!) (Set of 4) 6SH7 GE metal can NOS unmatched (4 for $18.99)
(!!) (Set of 4) JHY-6AK5 Hytron black plate NOS 1952 (test between 6-8ma unmatched) (4 for $39.99)
(!!!) (Set of 6) 6106 Bendix 1950's NOS rebranded 5Y3WGTA Heintz & Kaufman in 1970's (Set of 6 = 3 pairs)
(!!) (Set of 6) 6SH7 GE metal can NOS unmatched (6 for $25.99)
(!!) (single) 10Y=VT-25 SYLVANIA used/good 1940's (25.8ma)
(!!!) (Single) 12AT7 GE gray plate NOS 1975 (8.4ma/6.8ma)
(!!!) (Good Value Single) 12AU7 Philips Australia NOS 1970 era (9.6/8.8ma) (same internals as Holland made)
(!!!!) (BEST OVERALL SINGLE) 12AU7A GE NOS 1958 copper grid posts (11.8/11.4ma) 1-3% section balance
(!!!!) (SINGLE) 12AU7A GE NOS 1972 copper grid posts (10.6/9.8ma) (warm and smooth)
(!!!) (Single) 12AU7A RCA clear top NOS 1968 (8/11ma)
(!!!!) (Best Value Single) 12BH7A Sylvania gray oval plates "square=D" getter halo NOS 1950's (7.6/8.8ma)
(!!!!) (Single 1955) 12AU7 Brimar UK NOS gray ribbed plates "D" getter halo 1955 (8.2/10.4ma)
(!!!) (Single 1955) JG-12AY7 GE "D" getter like new 1955 (3.3/2.7ma) (High Gm)
(!!!) (Single 1958) 12AX7=ECC83 Siemens Germany long plates "o" getter halo 1958 used/good (0.8/0.9ma and Gm=1400/1400)
(!!!!) (Best Single 1958) 5751 Sylvania black plates triple mica D getter halo 1958 like new (2.5/2.3ma)
(!!!!) (Single 1959) ECC82=12AU7 Philips Miniwatt Holland like new low hours/tests like new 1959 (10.6/9.8ma)
(!!!!) (Single 1964) ECC82=12AU7 Miniwatt Philips Canada NOS 1964 (9.2/9.8ma) (same build as Holland)
(!!!!) (microphonic single) 5687 Tungsol ribbed black plates "U" getter NOS 1952 (42/41.5ma) (1st series made)
(SINGLE) 2050 GE NOS (6 in stock) (BEST PRICE)
(!!) (Single) 2A3 RCA branded CBS black plates like new 1940's (103ma) (high Gm)
(!!) (SINGLE) 417A Western Electric NOS "O" getter 1980 (28.8ma)
(!!) (SINGLE) 417A Western Electric NOS 1982 (20ma)
(!!) (Single) 46 RCA Radiotron / Cunningham Balloon used/good 1930's (46ma Gm=2200)
(!!) (Single) 47 RCA Victor NOS 1940's (32ma Gm=2620)
(!!!) (SINGLE) 5751 Hitachi Japan glossy black ribbed plates triple mica double D getters 1960's (2.2/2.6ma)
(!!!!!) (Single) 5Y3GT Philips Holland NOS 1960's (58/40 and 64/40) (Fender, Supro, Victoria, Decware) (Best Sound for the money) (Copy)
(!!!!!) (Single) 5Y3GT Philips Holland NOS 1960's (60/40 and 66/40) (Fender, Supro, Victoria, Decware) (Best Sound for the money)
(!!!!!) (Best Single #2) 5Y3GT Philips Holland NOS 1960's (62/40 and 63/40) (Fender, Supro, Victoria, Decware) (Best Sound for the money)
(SINGLE) 6021 European NOS 1974 (20 in stock)
(!!) (Single) 6060=12AT7 Brimar Thorn UK square black plates triple mica large "O" getter halo 1957 used/good (7.2/7.6ma) (Premium low noise 12AT7)
(!!) (Single) 6060=12AT7 Brimar Thorn UK square black plates triple mica large "O" getter halo 1960 NOS (6.4/8.4ma) (Premium low noise 12AT7)
(!!!!) (Single) 6080 GE "5 Star" black plates NOS 1960 (130ma/143ma)
(!!!!) (Single) 6080 GE "5 Star" black plates NOS 1960 (142ma/113ma)
(!!!) (Single) 6100=CV4058=6C4 Mullard box plate NOS 1973 (9ma)
(!!!!) (Single) 6146B GE NOS 1985 (86ma)
(!!!) (Single) 6688=E180F Amperex PQ USA NOS "O" getter 1968 (9ma)
(!!!!) (Best Value Single) 6922=E88CC Penta Labs Hungary used/like new 1980 era (13.8/15.8ma)
(!!!!) (Single) 6BK7B GE gray plates NOS "U" getter 1963 (6.2/5.4ma)
(!!!!) (Single) 6BK7B RCA NOS 1960's faded printing (7.4/7.4ma)
(!!!!) (Single) 6BK7B Tungsol branded RCA "U" getter 1957 (10/14ma)
(!!!!) (Single) 6BK7B RCA NOS "U" getter 1950's (7.5/8.5ma)
(!!!!) (Single) 6DJ8=ECC88 Sylvania JAN NOS 1972 (16.5/19.8ma)
(!!!!) (Single) 6DJ8=ECC88 Sylvania JAN NOS 1975 (19/24.5ma)
(!!!!) (Single) 6DJ8=ECC88 Sylvania NOS 1960's (12/16ma)
(!!!!) (Single) 6DJ8 Philips Miniwatt Holland used/tests like new 1961 (14.0/14.5ma) (similar sonically to Bugle Boy)
(!) (SINGLE) 6DQ5 Sylvania NOS 1970's (106ma)
(!!!) (Single) 6J5G Sylvania engraved base black oval plate used/very good 1930's (8.0ma)
(!) (Single) 6L6G RCA coated glass used/good 1946 (68ma)
(!!!!) (Single) 6L6GC=6n3CE Russian NOS 1990 coin/wafer base (75.6ma)
(!!!!) (Good Value Single) 6L6GC Seeburg by RCA black plate used/good 1961 (66ma)
(!!) (single) 6SL7GT RCA NOS black plates gray coated glass 1959 (2.0/1.7ma)
(!) (SINGLE) 6SL7GT RCA round black plates NOS 1970 (2.0/2.1ma)
(!!!) (Single) 6SN7GTA Westinghouse USA black plates NOS 1950's (7.0/7.6ma)
(!!!) (Single) 6SN7GTB GE Canada brown base NOS 1970 (10/7.2ma)
(!!!!!) (Single) 6V6GT Ken Rad coated glass NOS 1940's (40.5ma)
(!!!) (Single) 6X4 Tungsol NOS 1960's (60/40 and 66/40)
(!!) (Single) 6Y6G Tungsol NOS 1954 (74ma)
(!) (Single) 7062 Amperex Holland "PQ" NOS large "O" getter halo 1960 (8.6/7.8ma)
(!!!) (Single) 7199 RCA Black Plates NOS 1970 era (10.6/8.6ma)
(!!!!) (SINGLE) 7581A GE tan base NOS 1965 (62ma)
(!!!!) (BEST SINGLE) 7581A GE tan base green printing 1960 era (73.5ma)
(!!!) (SINGLE) 807=ATS25 GEC England ceramic base NOS 1940's dark gray plate (59ma)
(!) (SINGLE) 841=VT-51 Hytron NOS 1940's (5.2ma Gm=1200)
(SINGLE) 8417 Westinghouse "tan base" NOS 1966 triple getter - broken guide pin (128ma)
(!) (SINGLE) 866A GE NOS 1971 (54/40)
(!!!) (Single) CK-5687 Raytheon black plates "O" getter like new 1960 (30/33.5ma)
(!!!) (Single) CV4003=M8136=12AU7 Mullard branded Philips box plates NOS 1975 (8.8/8.2ma)
(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Philips NOS 1974 (35.6/30ma)
(!!) (Single) E288CC=8223 Siemens Halske Germany rebranded Telefunken NOS 1965 (41/29ma)
(!!!!) (Single) E83CC=12AX7 Siemens Halske Germany NOS 1976 (0.7/0.9ma and Gm=1400/1600)
(!!!) (Best Single) EC92=6AB4 Siemens Halske Germany branded Mullard NOS 1964 (10ma)
(!!!!) (SINGLE) ECC81=12AT7 Telefunken Germany <> bottom NOS 1962 (8.0ma/8.2ma)
(!) (SINGLE) ECC85=6AQ8 Sylvania black plates NOS 1960's (12.2/9.8ma)
(!) (SINGLE) ECC85=6AQ8 Sylvania black plates NOS 1960's (8.4/14ma)
(!!!!) (Single) ECF80=6BL8 Telefunken Germany NOS 1971 (11.7/9ma)
(!) (SINGLE) EF184 Philips Mullard UK NOS 1965 (12.2ma)
(!) (SINGLE) EF184 Philips Mullard UK NOS 1965 (15.2ma)
(!) (SINGLE) EF184 Philips Mullard UK NOS 1965 (15.6ma)
(!) (SINGLE) EF184 RCA Holland NOS 1962 (10ma)
(!) (SINGLE) EF184 RCA Holland NOS 1962 (9ma)
(!!!!) (Single) EF89=6DA6 Telefunken Germany <> bottom NOS 1966 (7.0ma)
(SINGLE) EL153 Telefunken NOS 1960's (70ma)
(!!!) (SINGLE) EL34 East Germany RFT branded AEG NOS 1970's (85.5ma)
(!) (Single) EL34 Mullard XF2 double halo "O-O" used/strong heat stain on plate 1967 (87ma)
(Single) EL86=6CW5 Sylvania branded RCA NOS (74ma)
(Single) EL86=6CW5 Sylvania branded RCA NOS (78.8ma)
(Single) EL86=6CW5 Sylvania NOS (85ma)
(!!) (Single) G-45 Majestic Balloon used/good 1930 era (32.5ma)
(!!) (Single) JAN-5670W GE used/good 1970's (6.8/6.0ma)
(!!!!) (Single) JAN-CHS-6SN7W Sylvania "SHORT BOTTLE" 1945 low hours like new in Admiral box (7.8/9.8ma)
(!!) (Single) JAN-CKR-6Y6G Ken Rad NOS 1944 (56ma)
(!) (SINGLE) JAN-CLRV-6SN7WGTA GE Canada brown base NOS 1970 (7.8/6.4ma)
(!!!) (Single) JHS-5670 Sylvania NOS 1966 (7.0/6.8ma)
(!!!) (Single) KT66 Osram UK black base used 1950's (57ma) (Gm=60%)
(!!) (Best Value Single) M8162=CV4024=12AT7WA Mullard UK NOS 1966 (8/7ma)
(!!!!) (Slightlly microphonic single) JAN-CHS-12AU7 Sylvania "black plates" with "D" getter halo NOS 1951 (9.2/9.8ma)
(!!) (slightly microphonic) 6922=E88CC Tesla Czech Republic NOS 1970 (18.6/20.4ma) (RODE)
(slightly microphonic) 6BC8 Raytheon Japan branded Great Britain NOS 1970's (10.8/12.2ma) (High mA and Gm)
(!!!) (Slightly microphonic Single) 6SL7GT Ken Rad NOS 1945 era (2.6/2.3ma)
(!!) (Slightly microphonic single) 6SN7GT Brimar UK NOS slightly microphonic 1960 era (6.8/7.8ma)
(!!!!) (Slightly microphonic Single) CV4004=12AX7 Mullard box plates NOS 1981 (Gm=1400/1500) (0.8/1.1ma)
(!!!) (slightly microphonic Single) E182CC=7119 Amperex PQ Holland NOS large "O" getter halo 1970 (35/37.2ma)
(slightly microphonic single) E182CC=7119 Amperex USA NOS 1981 (32/44ma)
(!!!) (slightly microphonic pair) E182CC=7119 Mullard SQ Holland NOS "O" getter halo 1963 (33.8ma/33.8ma and 35.2/34.4ma) (Same Gm)
T-20 Taylor Balloon used/like new 1940's
T-40 Taylor ceramic base used/like new (1 in stock)
Toshiba HD-XA2 High Definition HD DVD player very good condition
(!!!!!) Tube Recommendation Fee $25 - refundable with order (1 piece of audio gear; guitar amp, preamp, power amp, DAC, mic)
Tube Identification Fee ($10 per tube)
Tube testing fee
10uf/475VDC Sprague FP NOS (2"H x 1" dia) (TVL-1705)
500/200uf @ 16VDC Sprague FP cap NOS (1 in stock) (TVL-2190)
50uf/450V, 50uf/450VDC Sprague (FP) NOS 3"H x 1.375" dia. (1 in stock) TVL-2767
40uf/350VDC, 10uf/300VDC, 2uf/175V, 200uf/10VDC Sprague 2.5"H x 1.375" dia (TVL-4604.18)
10uf/475V, 18/475V, 40/25V Sprague 2"H x 1.375" dia
Type C JFD Air Cooled Ballast NOS (1 in stock)
(!) U19 GEC UK NOS 1960's (1 pair)
UAF42=12S7 Philips Miniwatt by Mullard UK NOS 1961 (1 in stock)
UAF42=12S7 Ultron Germany NOS (4 in stock)
UBC81=14G6 Brimar France NOS (1 in stock)
UBF89=19FL8 Valvo by Mullard NOS (2 in stock)
UCC85=26AQ8 Amperex Bugle Boy Holland NOS 1965 (4 in stock)
UCL82=50BM8 NOS (1 in stock)
UCL83 Mullard NOS 1958
UF41=12AC5 Ultron East Germany NOS (1 in stock)
UF42 Valvo by Mullard 1962 NOS (2 in stock)
UF89=12DA6 Amperex Bugle Boy Italy NOS 1963 (100/60)
UF89=12DA6 Telefunken made by Philip Italy NOS 1969-1970 (101/60)
UL41=45A5 Miniwatt France NOS 1962-1963 (3 in stock)
UL84=45B5 Amperex Holland NOS
UL84=45B5 Telefunken Diamond Bottom NOS 1960
UL84=45B5 Mullard UK branded Raytheon NOS 1963
UM4 Adzam NOS tuning eye 1950's (5 in stock)
UM80 Telefunken <> bottom NOS (tuning eye)
UM80 Valvo Holland tuning eye NOS (2 in stock)
(!) (Best Value Pair) US Navy-CNU-1626 National Union NOS 1940's (30ma and 32.5ma)
38233=2C21 Raytheon ceramic base NOS 1930's
(!!!!) (Best Single) USAF-5751 Sylvania NOS black plates triple mica D getter halo 1960 (1.9/1.8ma) (Same Gm)
(!!!!) (Recommended Used Pair) 6550C Svetlana Russian used/good 1997-2000 (135ma and 136ma) ** (1-3% matched)
(!!!!) (Used Pair) 6550C Winged C by Svetlana Russian used/good 2000-2001 faded top getters (116ma and 120ma) (same Gm) **
(!!!!) (Best Value Pair) 6550C Winged C by Svetlana Russian used/good 2001 faded top getters (156ma and 159ma) **
USN-5651WA Raytheon NOS in CK5651 box (1 in stock)
(!) UV-201-A RCA used/good 1930 era - no printing or etching on base (2.3ma)
UV-202 Radiotron "brass base" and tipped NOS original box 1920 era (45ma) (very rare)
(!) UX-112A Radiotron Balloon engraved base used/good 1930 era (7.4ma)
(!) UX-112A Radiotron Balloon engraved base used/tests like new 1930 era (8.3ma) (Gm like new)
UX-120 Radiotron used/tests 35% (low Gm=100) (display tube)
UX-171A RCA Radiotron Balloon used/good 1930's (18ma)
(!!!) (PAIR) UX-201-A Radiotron Balloon used/good brass pins 1930's (2.3ma and Gm=700 x 2 tubes)
(!!) UX-201-A Radiotron Balloon used/good brass pins 1930's (2.6ma and Gm=700)
UX-201-A Radiotron used/good 1930 era (2.4ma Gm=550)
(!!) UX-226 RCA Balloon NOS 1930 era (7.6ma, Gm=1000) (very nice single)
UX-245 RCA Balloon (display tube) (gassy)
UX-245 RCA Balloon (display tube)
(!!) UX-245 RCA Radiotron Balloon used/good 1930's rattle inside base (20.8ma)
(!!!!) UX-280 RCA Radiotron Balloon used/60% 1930 era some white oxide flakes inside tube (38/40 and 38/40)
5-pin (UX-5) Amphenol, Chicago USA NOS ceramic chassis mount socket with mounting bracket and wavy washer (1 in stock)
UX-874 Radiotron Balloon tests like new 1930 era
UX-226 RCA Radiotron balloon used/good 1920's (3.7ma Gm=900)
UY-224 RCA Balloon used/tests like new 1930's rattle inside base (50/25) (4.2ma Gm=1000)
UY-224A Champion Balloon used/very good 1930's (46/25)
(!!) UY-227 RCA Balloon NOS 1930 era (4.3ma)
(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (4.0ma)
(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.7ma)
(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.5ma)
(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.8ma)
UY41=31A3 Telefunken Germany <> bottom NOS 1962 (3 in stock)
UY85=38A3 European Brands NOS (3 in stock)
US Navy-38250=0D3 Sylvania NOS 1940's (argon)
(!) VT-100-A=807 Hytron black plate used/good 1940's (54ma)
(!!) (~ Recommended ~) VT-107A=JAN-CHS-6V6GT Sylvania black plate / gray coated glass NOS 1945 (35ma)
VT-107A=JAN-CHS-6V6GT Sylvania black plate / gray coated glass NOS mid-1940's (31ma)
VT-135=12J5GT RCA NOS 1940's (6.0ma)
(!!!) (Best Value) VT-229=6SL7GT Sylvania round black plates used/like new 1940's (2.5/2.7ma) (Gm like new)
(!!!) (PAIR) VT-25-A Sylvania NOS and like new 1940's (34ma and 38.2ma)
(!!) (Recommended Single) VT-52 Sylvania NOS 1940's original box (55ma)
(!!) (Best VT-52 Single #2) VT-52 Western Electric engraved base early 1940's like new (65ma)
(!!) (Best VT-52 Single) VT-52 Western Electric engraved base early 1940's like new (60ma)
VX-41A Victoreen NOS (4 in stock)
W-45788 Crosley ballast used/good 1940's (247 ohms pins 3-7)
Wavy Washer NOS (30 in stock)
Western Electric KS-14784 (0-10ma DC) meter by Weston used/good
(!!!!) (BEST PAIR) 309A Western Electric NOS 1960 (4.8ma and 5.1ma) (same Gm)
50uf/350VDC, 60uf/250VDC, 5uf/250VDC, 100uf/50VDC Mallory FP NOS (2"H x 1.75" dia) (WP419.585A) (3 in stock)
140uf/350V, 5uf/300V, 200uf/200VDC Mallory Axial Cap NOS 4.375"L x 1.375" dia (WT-449)
XXFM=7X7 Sylvania branded Philco NOS (2 in stock)
Z-2946 GE NOS 1961 (2 in stock)
(!!!!) (Recommended Single) Z729=EF86 GEC UK NOS "D" getter halo 1950's (2.9ma Gm=2000)
Z759=CV5060 GEC UK Coated Glass NOS (2 in stock)
Zenith 15" speaker used - needs to be re-coned (49AB356) w/transformer
(!!!!!) (1 Pair) Zu Presence loudspeakers - matte Phoenix Red finish (1 pair) (limited edition)
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