(!!!!) (Pair 1940's) 807 RCA black plate NOS 1940's same build (73ma and 79ma)

1 pair) 807 RCA black plate NOS 1940's in white boxes

1 tube) 73ma Gm=5500 (807)

1 tube) 79ma Gm=5900 (JAN-CRC-807)

Tested on Amplitrex

Good Ma 60-72ma

Good Gm 5500-6000

- TRON JUBILATE
- VTL
- HEATHKIT W-1