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(!!!!) (Best Pair #2) 5670W GE NOS 1986 (9.4/11ma and 9.8/11.6ma) 1-5% matched  (Highest Ma and Gm)

(!!!!) (Best Pair #2) 5670W GE NOS 1986 (9.4/11ma and 9.8/11.6ma) 1-5% matched (Highest Ma and Gm)

$ 48.88

1 pair) 5670W GE NOS 1986

1 tube) 9.4/11.0ma Gm=6200/6500

1 tube) 9.8/11.6ma Gm=6400/7100

 

Matched on Amplitrex

Vplate=150V

Vgrid=-1.9V

Good Ma = 6 - 8ma

Good Gm = 5000-5500

 

5670=2C51=396A=6C3P=6N3P 

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