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RK39

Information - Help 
ID = 11871
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Transmitting Tetrode, air cooled   Power/Output 
Identical to RK39
Similar Tubes
Normally replaceable-slightly different:
  807
Heater different:
  RK41

Base UY-Base, 5 Pins (USA, April 1927) (Codex=Hcb) Top contact with a cap
Was used by Transmittertube (Radio)
Filament Vf 6.3 Volts / If 0.9 Ampere / Indirect / Parallel, (AC/DC)
Description

25W plate dissipation, 60MHz full ratings operation, up to 120MHz with plate voltage reduced to 300V max.
807 version with ceramic base.

 
Text in other languages (may differ)
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
Tube Lore (I)
 
rk39.jpg
RK39: home.comcast.net/~nwilson343/tubes
Christian Schaufelberger

 
rk39_so.png
RK39: ARRL Handbook 1972
Michael Schlör

 
rk3941.png
RK39: Handbook Raytheon amateur tubes
Miguel Angel Trujillo-Rodriguez


Usage in Models 1= 1938 ; 1= 1943

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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