(!!) (2nd Best Sylvania Single) 7199 Sylvania NOS 1960's (11.6ma pentode, 10.2ma triode)
By Tube World
$ 89.99
7199 Sylvania NOS 1960's
(11.5ma) Gm=6200 (pentode section) strong
(10.2ma) Gm=2500 (triode section) very strong
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