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ID = 15870
United States of America (USA)
Brand: General Electric Co. (GE); Bridgeport CT, Syracuse NY
Tube type:  Triode, vacuum   UHF 
Identical to GL-446A = 446A = CV932
Similar Tubes
Normally replaceable-slightly different:
Successor Tubes 2C40  

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uca)
Filament Vf 6.3 Volts / If 0.75 Ampere / Indirect / Parallel, (AC/DC)
Description Lighthouse tube. First 'soldered-can' cathode, superseeded by 2C40. GL-446A was intended as RF amplifier in radar receivers. Noise figure as low as 10 dB at 1.0 GHz, versus 23 dB of other UHF tubes, like 368A. 
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
Tube Lore (I)
Geri Meier

GL-446A: ARRL Handbook 1972
Michael Schlör


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