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(!!!!!) (Best Pair #4) 8417 Sylvania NOS 1970's (110.5ma and 114.5ma)

(!!!!!) (Best Pair #4) 8417 Sylvania NOS 1970's (110.5ma and 114.5ma)

$ 249.99

1 pair) 8417 Sylvania NOS 1970's top and side getters

Iplate=

110.5ma

114.5ma

Iscreen=

4.4ma 

4.8ma

Gm=

22,700

21,700

 

 

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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