(!!!) (PAIR 1940”s) 6AC7 RCA used/good 1941-1942 (7.8/7.5ma)

1 pair) 6AC7 RCA 1941-1942 used/good – reboxed

1 tube) 7.8ma Gm=8000 USN-CRC-6AC7

1 tube) 7.5ma Gm=8100 JAN-CRC-6AC7

Matched on Amplitrex

Good used mA = 8-9ma+

Good used Gm = 8500-9000+

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