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(!!!!) (Best Quad) 8417 RCA by Sylvania NOS 1960's - 1970's (100, 101.6, 103, 102ma)

By Tube World

$ 519.99

1 matched quad) 8417 RCA by Sylvania NOS 1960's - 1970's original boxes

Iplate=

V1 100.0ma top and side getter mid-1970's

V2 101.6ma top getter only 1967

V3 103.0ma top and side getter mid-1970's

V4 102.0ma top getter only 1973 era

Iscreen=

V1 4.6ma

V2 4.8ma

V3 4.8ma

V4 4.7ma

Gm=

V1 23,100

V2 22,500

V3 21,900

V4 21,800

 

Matched 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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