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70A7GT

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ID = 5803
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  HalfWave Rectifier-BeamPowerTetrode 
Identical to 70A7GT
Similar Tubes
Multiple differences or of other kind:
  70L7GT
First Source (s)
30.Jun.1939 : Electron Tube Registration List

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uib)
Filament Vf 70 Volts / If 0.15 Ampere / Indirect / Series, AC/DC
Tube prices 1 Tube prices (visible for members only)
Literature Essential Characteristics, GE 1973   
Taschenbuch zum Röhren-Codex 1948/49   
 
70a7gt_so.png
70A7GT: ARRL Handbook 1972
Michael Schlör

 

Usage in Models 3= 1938 ; 5= 1939 ; 11= 1940?? ; 2= 1940?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):21

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