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(!!!!) (#1 6FQ7 Matched Quad) 6FQ7 GE branded RCA NOS 1970's same date codes 2-3% matched

(!!!!) (#1 6FQ7 Matched Quad) 6FQ7 GE branded RCA NOS 1970's same date codes 2-3% matched

$ 99.99

1 low noise quad) 6FQ7 GE branded RCA NOS 1970's, series filaments, original boxes

1 tube) 7.7/8.5ma Gm=2500/2700 

1 tube) 7.7/8.5ma Gm=2400/2600

1 tube) 8.1/8.5ma Gm=2600/2700

1 tube) 8.3/8.3ma Gm=2600/2600

 

Matched on Amplitrex

Vplate=250V

Vgrid=-8V

Good Ma = 7-9ma

Good Gm = 2300-2500

 

Recommended for

Conrad Johnson

Audio Research

Ampeg

Stax

Marantz

See more: vacuum tube
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