12SA7GT Auburn USA probably by National Union NOS 1950”s, 12SA7GT wiped off glass after tube was cleaned
3.8ma
Gm=1400
$2.10 $6.99
12SA7GT Auburn USA probably by National Union NOS 1950”s, 12SA7GT wiped off glass after tube was cleaned
3.8ma
Gm=1400
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