800=VT-64 RCA Radiotron charcoal black plate engraved base used 1930's (42ma, Gm=2000)
$ 149.99
1 tube) 800=VT-64 RCA Radiotron used/good 1930's charcoal black plate - "L" shaped getter, good getter flash, in white box
42ma
Gm=2000
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
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