(!!!) (Recommended Single) 8417 Sylvania branded RCA NOS 1974 (89ma)
$ 109.99
1 tube) 8417 Sylvania branded RCA NOS 1974 in white box, from Chicago Musical Instrument Co.
Iplate=
89ma
Iscreen=
5.2ma
Gm=
21,100
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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 (Recommended Single) 8417 Sylvania branded RCA NOS 1974 (89ma) "Pin It")