12SA7GT Hytron tests like new 1946 (3.6ma Gm=1000)
By Tube World
$ 5.99
12SA7GT Hytron tests like new 1946
3.6ma
Gm=1000
Gm NOS = 1000-1200
Good Ma used 2.5-3.1ma
See more: vacuum tube
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