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(!) 8417 Sylvania branded GE NOS in Sylvania box (85ma)

(!) 8417 Sylvania branded GE NOS in Sylvania box (85ma)

$ 99.99

1 tube) 8417 Sylvania branded GE NOS in Sylvania box 1970 era

Iplate=

85ma

Iscreen=

3.6ma 

Gm=

20,000

 

 

Tested on Amplitrex:

Vplate=300V

Vscreen=300V

Vgrid=-12V

Good NOS Ma range 80-110ma

Good NOS 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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