Tronal

Tronal
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    Tronal

    Late edition sharp cut-off pentode tubes manufactured by Tronal. These miniature glass 7-pin tubes were designed as Class A1 amplifiers. Mutual conductance varies under circuit conditions between 4,400 and 6,100 umhos, with plate currents form 4.7 mA to 7.5 mA, giving an amp. factor of approximately 40. Tubes marked 6BC5 TRONAL, come in bulk 100 flat packs. Late edition sharp cut-off pentode tubes manufactured by...

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