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RK28

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ID = 11928
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Transmitting Tube, Pentode, air cooled 
Identical to RK28

Base Giant 5 pin medium shell USG5 Bayonet (Codex=Hr)
Filament Vf 10 Volts / If 5 Ampere
Information source Taschenbuch zum Röhren-Codex 1948/49   

rk28_sch.png
RK28: Kenyon Amateur Manual
Heinz Höger

rk28_so.png RK28: ARRL Handbook 1972
Anonymous 10 Collector


Just Qvigstad
rk28.png
RK28: Handbook Raytheon amateur tubes
Miguel Angel Trujillo-Rodriguez

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RK28
 

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