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HK57

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ID = 11253
       
Country:
United States of America (USA)
Brand: Heintz & Kaufman Ltd. (Gammatron); San Francisco, CA
Developer: Heintz & Kaufman Ltd. (Gammatron); San Francisco, CA 
Tube type:  Beam Power Tube   Power/Output 
Identical to HK57 = 57-Gammatron

Was used by Transmittertube (Radio)
Filament Vf 5 Volts / If 5 Ampere / Direct
Description

VHF all glass beam pentode. Base is special septar dish with 1/8th inch plate pin. introduced 1947 but had a short commercial life..

 
Information source Taschenbuch zum Röhren-Codex 1948/49   
Tube Lore (II)   p. 101

hk57_so.png HK57: ARRL Handbook 1972
Anonymous 10 Collector

 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

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