(!!) (Best Pair) 8417 Sylvania NOS 1970 era same date codes (112.2ma and 114.5ma)
By Tube World
$ 269.99
1 pair) 8417 Sylvania NOS 1970 era same date codes
1 tube)
Ma plate=112.2ma
Ma screen=4.9ma
Gm=22,500
1 tube)
Ma plate=114.5ma
Ma screen=5.0ma
Gm=23,700
Tested on Amplitrex:
Vplate=300V
Vscreen=300V
Vgrid=-12V
Good NOS Ma range 85-100ma
Good Gm = 21,000-23,000
For:
- UFO
- Fisher SA-1000
- Dynaco
- Quicksilver
- Dynaco Mark VI introduced in 1976
- Gibson
- Bogen
- Harmon Kardon
See more: vacuum tube
Share:
 (Best Pair) 8417 Sylvania NOS 1970 era same date codes (112.2ma and 114.5ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_1b9813d5-3824-424b-b0be-c97ebf21afff.jpg?v=1698710588){kind=link}
 (Best Pair) 8417 Sylvania NOS 1970 era same date codes (112.2ma and 114.5ma) "Pin It")