12SA7GT Nat. Union branded FORD MOTOR CO. used/strong 1940's (4.2ma Gm=1200)
$ 4.99
12SA7GT Nat. Union branded FORD MOTOR CO. used/strong 1940's (4.2ma Gm=1200)
Gm NOS = 1000-1200
Good Ma used 2.5-3.1ma
See more: vacuum tube
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