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(!!!) (Best Pair) 12A Sylvania green leaf NOS 1940's original boxes (7.5ma and 7.9ma)
(!!!) (Best Pair) 12A Sylvania green leaf NOS 1940's original boxes (7.5ma and 7.9ma)
$ 74.99
1 pair) 12A Sylvania green leaf NOS 1940's original boxes - tubes were factory sealed
1 tube) 7.5ma Gm=1700
1 tube) 7.9ma Gm=1700
Vplate = 180V
Vgrid = -13.5V
Good Ma = 6-7ma
Good Gm = 1600-1700
See more: vacuum tube
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 (Best Pair) 12A Sylvania green leaf NOS 1940's original boxes (7.5ma and 7.9ma) "Pin It")