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117N7

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ID = 10775
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  HalfWave Rectifier-BeamPowerTetrode   Power/Output 
Identical to 117N7 = CV2557

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 117 Volts / If 0.09 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

valvula117n7.png
117N7: Internet
Miguel Angel Trujillo-Rodriguez

389.png 117N7: Telefunken Werkstattbuch
Wolfgang Bauer

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Just Qvigstad
117n7_dat.png
117N7: elektron taschenbuch 1952
Heinz Höger

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Usage in Models 1= 1940 ; 1= 1945

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

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