(!) (Good Value Pair) 8417 GE used/good 1970's (75ma and 78ma)
By Tube World
$ 129.99
1 pair) 8417 GE used/good 1970's
1 tube) 75ma Gm=16,650
1 tube) 78ma Gm=18,600
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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 (Good Value Pair) 8417 GE used/good 1970's (75ma and 78ma) "Pin It")