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(!!!) (Recommended Single) 8417 Sylvania branded RCA NOS 1974 (89ma)

(!!!) (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

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