6CS7 GE Canada NOS black plates 1960's (18/11.2ma)
$ 24.99
6CS7 Sylvania NOS black plates 1960's
18ma Gm=4500
11.2ma Gm=2200
Tested on Amplitrex
Good Ma triode #1 = 10-11ma, Good Gm = 2000-2200
Good Ma triode #2 = 20-25ma Good Gm = 4000-4500
for:
Leben CS 600 integrated amp
Leben CS 660P power amp
See more: vacuum tube
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