99=X-199 Silvertone NOS 1934 (2.5ma, Gm=500) (strong single)
$ 59.99
99=X-199 Silvertone NOS 1934
2.5ma
Gm=500
Vplate=90V
Vgrid=-4.5V
Iplate = 2.5ma
Gm=500
(UV-99 and UX-99 have a 3.3V @ .063ma Filament, UX base has smaller size pins)
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