(!!!!!) (Best Pair) 8417 Sylvania NOS 1970's same date codes (119.5ma and 120ma)
By Tube World
$ 269.99
1 pair) 8417 Sylvania NOS 1970's same date codes excellent condition
Iplate=
119.5ma
120ma
Iscreen=
5.0ma
5.2ma
Gm=
23,900
23,700
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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