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(!!!) (Recommended Pair) 6FQ7 Sylvania NOS 1970's same build (6.4/6.8ma and 6.4/6.4ma)

(!!!) (Recommended Pair) 6FQ7 Sylvania NOS 1970's same build (6.4/6.8ma and 6.4/6.4ma)

$ 47.99

1 low noise pair) 6FQ7 Sylvania NOS 1970's same build

1 tube) 6.4/6.8ma Gm=2300/2300 branded RCA

1 tube) 6.4/6.4ma Gm=2200/2300 

 

Matched on Amplitrex

Vplate=250V

Vgrid=-8V

Good Ma = 6-9ma

Good Gm = 2300-2500

 

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