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99=X-199 Silvertone NOS 1934 (2.5ma, Gm=500) (strong single)

99=X-199 Silvertone NOS 1934 (2.5ma, Gm=500) (strong single)

By Tube World

$ 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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