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800=VT-64 RCA DeForest black plate engraved base used/good 1930's (38ma, Gm=1750) (tested on Amplitrex)
800=VT-64 RCA DeForest black plate engraved base used/good 1930's (38ma, Gm=1750) (tested on Amplitrex)
$ 99.99
1 tube) 800=VT-64 RCA Deforest used/good 1930's charcoal black plate - rectangle flat-foil getter, good getter flash, in white box
38ma
Gm=1750
Good used Ma range 40-45ma
Good Gm = 2000-2100
Vplate=500V
Vgrid=-1V
General Information
Vfil=7.5V @ 3.25A, 35 watts, Vplate max=1250VDC, Mu=15
Introduced in 1933
transmitting triode
See more: vacuum tube