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PM_deForest

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ID = 30770
       
Country:
United States of America (USA)
Brand: DeForest-Tubes
Developer: DeForest-Tubes 
Tube type:  Transmitting Triode, air cooled   Text 
  Ca. 1925 up to 1945 rare.
Identical to PM_deForest
First Source (s)
1926 : Saga of the Vacuum Tube, Tyne p.301-304

Base TRANSMITTING & Power-TUBES/VALVES in gen Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 15 Volts / If 6 Ampere / Direct / Specified voltage AC/DC
Description

250 Watts input. Modulator, corresponding to PO oscillator and PR rectifier

 

 

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