24A Sylvania ST-shape engraved base used/very good 1930's (44/25) (2.9ma Gm=800)
By Tube World
$ 9.99
1) 24A Sylvania ST-shape engraved base used/very good 1930's
2.9ma
Gm=800
Good used Ma = 2.5 - 3.0ma
Good used Gm = 700-800
TV7D/U=44/25
See more: vacuum tube
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