(!!!) (Best Pair) 6AC7 RCA 1942-1945 used/test like new (13/14ma)

1 pair) 6AC7 RCA 1942-1945 used/test like new - reboxed

1 tube) 13ma Gm=9600 (6AC7=1852) 1942

1 tube) 14ma Gm=9700 (USN-CRC-6AC7) 1945

Matched on Amplitrex

Good Ma = 8-10mA

Good Gm = 8500-9500

Vplate=300V

Vscreen=150V

Vgrid=-2V

6AC7=1852=VT-112 US Brands

for:

- Mr. Liang Audio 845-3
- Welbourne Laurel IIx SET (WE 300B)
- JAS Bravo 2.3 integrated amp