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ID = 28683
       
Country:
United States of America (USA)
Brand: DeForest-Tubes
Developer: DeForest-Tubes 
Tube type:  High-vacuum Rectifier   Power-supply 
  Ca. 1925 up to 1945 rare.
Identical to PR
First year 1926 ?? Saga of the Vacuum Tube, Tyne page 303, 304

Base SPECIAL TUBEBASE in general Top contact with a cap.
Was used by Transmittertube (Radio)
Filament Vf 15 Volts / If 9 Ampere / Direct
Description

Corresponding rectifier to the PO. oscillator and PM modulator

 
Text in other languages (may differ)
Information source Saga of the Vacuum Tube, Tyne   Pages 303 & 304

Collection of

 
screenshot_20230430_122300_gallery.jpg

 

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