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(!!!!) (#1 7581A Quad) JAN-7581A Philips by Sylvania Big Bottle NOS 1985 (87.5, 87.5, 87.5, 88ma) (matched quad)

$ 329.99

1 matched quad) JAN-7581A Philips by Sylvania Big Bottle NOS 1985 original boxes

1 tube) 87.5ma Gm=6700

1 tube) 87.5ma Gm=6600

1 tube) 87.5ma Gm=6550

1 tube) 88.0ma Gm=6550

 

Good Ma range 60-70ma

Good Gm range 5600-6000

Recommended for

- Ampeg VT22
- Fender Bassman 1969
- SunValley VP-3488SE
- Fender Vibrolux reverb 1971
- Fender Super Reverb 1970

 

See more: vacuum tube
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