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RK48A

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ID = 11932
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Transmitting Tube, Pentode, air cooled 
Identical to RK48A
Similar Tubes
Normally replaceable-slightly different:
  CV690
Base (Codex=Hrb) Top contact with a cap.
Filament Vf 10 Volts / If 5 Ampere / Direct
Description Beam power transmitting tube. 100W anode dissipation; 30 MHz full ratings operation; up to 60 MHz with anode voltage not exceeding 1500V. Thoriated tingsten filament, molybdenum plate; hard-glass bulb with Jumbo 5 pin ceramic bayonet base. Sibley gives RK48 as equivalent to 4E27 and HK257B, but there are several differences, including power, frequency and basing. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (I)   
rk48a_so.png RK48A: ARRL Handbook 1972
Anonymous 10 Collector
 
Forum contributions about this tube
RK48A
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RK48A (RK48A)
Götz Linss † 27.06.21
03.Jan.08 		  1
RK48A (RK48A) 

Anwendungsdaten:

Purpose         Plate  Grid  Screen  Plate max. Diss.  Output  Drive   Max.Height

=========================================================

Osc/RF-Amp  2000  -100   400         100W                250W   1.0W    8.75"

Class B RF    2000   -35    400         100W                 60W     0.22W

 

Quelle: Inserat Raytheon in ARRL Handbook 1942
 
RK48A
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