(!!!) (Best Pair) 6AC7=1852=VT-112 RCA low hours/tests like new 1940”s (11.4/12.4ma)

1 pair) 6AC7=1852=VT-112 RCA low hours/tests like new 1940”s in white boxes

1 tube) 11,4ma Gm=10,200 (JAN-CRC)

1 tube) 12.4ma Gm=10,000 (USN-CRC)

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