13EM7 Sylvania NOS 1960's (1.6/53ma) best single
$ 9.99
13EM7 Sylvania NOS 1960's
1 section) 1.6ma Gm=1700
1 section) 53ma Gm=8300
Good mA triode #1 = 1.2-1.4ma
Good Gm triode #1 =1400-1600
Good mA triode #2 = 30-40ma
Good Gm triode #2 = 5500-7000
See more: vacuum tube
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