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ID = 80490
United States of America (USA)
Brand: DeForest-Tubes
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 551_DeForest

Base TRANSMITTER-Base in gneral
Was used by Transmittertube (Radio)
Filament Vf 11 Volts / If 15.5 Ampere / Direct / Parallel, (AC/DC)

1000 watt RF power amplifier.

Information source -- Original prospect or advert   
551_DeForest: Electronics, September 1931
Achim Dassow


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