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804

Information - Help 
ID = 20540
       
Country:
United States of America (USA)
Brand: USA - Tubes designated in the USA
Tube type:  Transmitting Tube, Pentode, air cooled 
Identical to 804 = OS41/1250 = CV624 = VT137_GPO
Similar Tubes
Normally replaceable-slightly different:
  CV704 ; OS40/1250
Different maximum ratings:
  RK20

Base UY-Base, 5 Pins (USA, April 1927) Top contact with a cap
Filament Vf 7.5 Volts / If 3 Ampere / Direct
Description Transmitting pentode. 40W plate power dissipation, 15MHz full ratings, up to 80MHz at reduced voltage.
G3 wired out for suppressor modulation. 
Text in other languages (may differ)
Literature Tube Lore (I)   
  804sch_img038.png
  804: RADIO Handbook 1938
Stig Comstedt
 
804.jpg
804: COLECION PROPIA
Justo Puertas-Paule

 
804_so.png
804: ARRL Handbook 1972
Michael Schlör

 
804.png
804: RCA Technical Manual TT3
Miguel Angel Trujillo-Rodriguez



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