(!!) (1 Pair) 6G6G RCA NOS branded RCA and Raytheon 1945-1950 era same build (13.6ma and 14.0ma)

1 pair) 6G6G RCA NOS branded RCA and Raytheon 1945-1950 era same build grayish/black round plate

1 tube) 13.6ma Gm=2000 branded Raytheon

1 tube) 14.0ma Gm=1900 branded RCA 1945

Vplate=180V

Vscreen = 180V

Vgrid = -9V

Good Ma range 12-15ma

Good Gm range 2100-2300

– Emery Microbaby
– Space Tech Labs (Canada)