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(!!!!!) (Good Value Single) 12AX7 BRIMAR BVA England narrow ribbed plates like new 1959 (1.0/1.2ma)
$122.99
$144.00
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(!!!!) (Best Single) 5692 CBS Hytron Brown base NOS 1957 (9.4/9.0ma) (same Gm)
$123.00
$144.99
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(!!!!) (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)
$123.00
$144.99
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(!!!) (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)
$127.00
$149.99
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(!!!) (SINGLE) 12AU7=ECC82 RT Radio Technique France long plates 1958-1959 (11.6/9.8ma) (close Gm)
$127.00
$149.99
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(!!!) (Best Single) ECC82=12AU7 Philips Holland branded SONOTONE NOS 1960 (10.6/12ma)
$127.00
$149.99
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(!!!!) (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)
$127.00
$149.99
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(!!!!) (Best Value Single) 12AX7 Telefunken Germany smooth plates branded DYNACO like new 1964 (Gm=1600/1800 and 0.9/1.4ma)
$127.00
$149.99
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(!!!) (Best Single) 311B Western Electric NOS 1956 (31.6ma)
$127.00
$149.99
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(!!!!) (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)
$127.00
$149.99
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(!!!) (BEST PAIR #2) ECC808=6KX8 Telefunken Diamond Bottom NOS 1969 (1.1/1.1ma and 1.1/1.4ma)
$127.00
$149.99
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(!!!) (Best Single 1950's) 12AX7 RCA black plates "D" getter tests like new mid-1950's (1.5/1.3ma and Gm=1800/1600)
$127.00
$149.99
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(!!!!) (BEST SINGLE) JAN-6922 Amperex USA globe logo gold pins NOS 1967 (12/15ma)
$127.00
$149.99
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(!!!!!) (Recommended Single) CV4035=M8214=12AX7 Mullard England box plates NOS flying leads 1961 (solder leads into ckt)
$127.00
$149.99
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(!!!!) (Single 1955) 12AU7 Brimar UK NOS gray ribbed plates "D" getter halo 1955 (8.2/10.4ma)
$135.99
$159.99
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(!!!!) (BEST PAIR #1) ECC808=6KX8 Telefunken Diamond Bottom NOS 1969 (1.2/1.2ma and 1.3/1.4ma)
$135.99
$159.99
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(!!!!) (Best Mullard Single) E88CC/01=6922 Mullard England Mitcham plant NOS 1964 (11.0/11.2ma) (3D MIDS, low noise) (mic)
$135.99
$159.99
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(!!!!) (Best Value 1965) 12AX7 Philips Miniwatt Holland like new 1965 (Gm=2000/2000 and 1.6/1.7ma) (Highest mA and Gm)
$135.99
$159.99
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(!) 7308 Philips SQ Holland NOS 1965 faded printing in white box (13.4/19.4ma)
$144.00
$169.99
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(!) (SINGLE) 5692 RCA RED BASE rebranded GL-5692 GE used/good 1949 (8.2/7.6ma)
$144.00
$169.99
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(!!!!) (Best Value Single) 12AX7 Raytheon Black Plates NOS 1962 (.9/1.1ma and Gm=1400/1600)
$152.99
$179.99
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(!!!!) (Recommended Single) Z729=EF86 GEC UK NOS "D" getter halo 1950's (2.9ma Gm=2000)
$152.99
$179.99
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(!!!!) (Recommended Single) 6DJ8 Philips Miniwatt Holland NOS 1960 era large "O" getter halo (18.0/19.4ma)
$152.99
$179.99
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(!!!!) (Good Value 1962) M8137=12AX7S Philips SQ France ribbed plates NOS 1962 (1.1/1.1ma and Gm=1550/1450) (Special Quality 12AX7)
$152.99
$179.99
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