5BQ7A Tungsol black plates NOS 1960 era (13.2/12.2ma)
$ 7.99
5BQ7A Tungsol black plates NOS 1960 era in white box
13.2ma Gm=7100
12.2ma Gm=6700
sub for a 6BK7 and 6BQ7A
dual-triode
See more: vacuum tube
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