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(!!!) (~ 2nd Best Pair ~) 12A Sylvania green leaf NOS 1940's original boxes (7.4ma and 7.1ma)

$ 69.99

1 pair) 12A Sylvania green leaf NOS 1940's original boxes

1 tube) 7.4ma Gm=1700

1 tube) 7.1ma Gm=1700

 

Vplate = 180V

Vgrid = -13.5V

Good Ma = 6-7ma

Good Gm = 1600-1700

See more: vacuum tube
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