8417 Sylvania branded Bogen used/tests like new 1960's (102.2ma)
$ 99.99
8417 Sylvania branded Bogen used/tests like new 1960's
102.2ma
Gm=20,700
Tested on Amplitrex:
Vplate=300V
Vscreen=300V
Vgrid=-12V
Good used Ma range 70-90ma
Good used Gm = 17,000 - 19,000
For:
- UFO
- Fisher SA-1000
- Dynaco
- Quicksilver
- Dynaco Mark VI introduced in 1976
- Gibson
- Bogen
- Harmon Kardon
See more: vacuum tube
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