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RK75

Information - Help 
ID = 11624
       
Country:
United States of America (USA)
Brand: Raytheon Mfg. Co.; Cambridge, MA
Tube type:  Vacuum Pentode   Power/Output 
Identical to RK75 = 307A

Base UY-Base, 5 Pins (USA, April 1927) (Codex=Hr)
Filament Vf 5.5 Volts / If 1 Ampere / Direct / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
radio291small.jpg
RK75: eigene Sammlung
Joachim Haas

 
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RK75: ARRL Handbook 1972
Anonymous 10 Collector

 
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RK75: Raytheon Manual
Heinz Höger


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