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117L7GT

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ID = 3216
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  HalfWave Rectifier-BeamPowerTetrode 
Identical to 117L7GT = 117L7 = CV2556
Similar Tubes
Normally replaceable-slightly different:
  117L7/M7GT ; 117M7GT
Different connections:
  117P7GT
First Source (s)
25.Sep.1939 : Electron Tube Registration List
Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 117 Volts / If 0.09 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Tube prices 1 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
117l7.png
117L7GT: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
117m7gt_so~~4.png 117L7GT: RCA Reference Book 1968
Anonymous 10 Collector
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Just Qvigstad 		117l_m_n_p7gt_brimar_radio_valves_and_teletube_manual_1950_no.3_p1_data_pin~~1.png
117L7GT: Brimar Valve and Teletube Manual 1950 (No.3)
Adrian Riesen
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Usage in Models 2= 1939? ; 6= 1939 ; 1= 1940?? ; 3= 1940? ; 12= 1940
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24

Collection of

David Erali (USA)
Ludvig Rylander (S)
 
emerson_117l7gt_front.jpg

 
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