(!!!!!) (Best Pair) 8417 Sylvania NOS 1970's same date codes (117.4ma and 118ma)
By Tube World
$ 269.99
1 pair) 8417 Sylvania NOS 1970's same date codes excellent condition
Iplate=
117.4ma
118.0ma
Iscreen=
4.6ma
4.5ma
Gm=
21,400
21,200
Tested on Amplitrex:
Vplate=300V
Vscreen=300V
Vgrid=-12V
Good Ma range 90-110ma
Good Gm = 20-23,000
Recommended 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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