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ID = 17052
United States of America (USA)
Brand: Heintz & Kaufman Ltd. (Gammatron); San Francisco, CA
Tube type:  Transmitting Triode, air cooled 
Identical to 1554

Filament Vf 11 Volts / If 17.5 Ampere
Description 1KW-AM FCC listed 'Gammatron' transmitting triode. 3KV anode supply, 750W plate dissipation, 30MHz max operating full ratings.
Bi-pin base, anode to top cap and grid to side cap. 
Dimensions (WHD)
incl. pins / tip
x 457 x mm / x 17.99 x inch
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Original prospect or advert   Electronics, June 1938
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