Log-in
(!!!!) (#1 8417 Quad) 8417 Fisher by Sylvania NOS 1962 made for FISHER audio equipment (108, 109, 109, 109ma) (matched on Amplitrex)

(!!!!) (#1 8417 Quad) 8417 Fisher by Sylvania NOS 1962 made for FISHER audio equipment (108, 109, 109, 109ma) (matched on Amplitrex)

$ 349.99

1 matched quad) 8417 Fisher by Sylvania NOS 1962 made for FISHER audio equipment and shipped to FISHER service technicians - tubes are from a factory case of 100 re-boxed in white boxes

Iplate=

V1 109ma

V2 109ma

V3 109ma

V4 108ma

Iscreen=

V1 5.6ma

V2 4.8ma

V3 4.8ma

V4 5.0ma

Gm=

V1 22,700

V2 23,200

V3 23,500

V4 22,500

 

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

See more: vacuum tube
Scroll to top