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(!) (#3 BEST PAIR) 7868 Sylvania NOS (50ma and 51ma)

(!) (#3 BEST PAIR) 7868 Sylvania NOS (50ma and 51ma)

$ 139.99

Tube Specs

1 Matched Pair NOS

1 tube) Sylvania rebranded RCA 1970's
1 tube) Sylvania green printing 1978

original boxes

Test Data

1 tube) 50ma, Gm=9100
1 tube) 51ma, Gm=9100

(Good Current range=40-60ma)

(Good Gm range = 8000-10,000)

Tested on Maxi-Matcher

(Vplate=325V, Vscreen=325V, Vgrid=-12V, triode connected)

 

Recommended for

- Ampeg Reverberocket R-12R 1965
- Ampeg Jet 12 1960's
- Fisher Model 400 FM Multiplex Receiver
- Fisher X-100B
- Bogen

 

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