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HK155

Informazioni - Aiuto 
ID = 39047
       
Stato:
USA (Stati Uniti d'America)
Produttore: Heintz & Kaufman Ltd. (Gammatron); San Francisco, CA
Progettista: Heintz & Kaufman Ltd. (Gammatron); San Francisco, CA 
Tipo:  Triodo a vuoto   Power/Output 
  late but very rare
Identico a HK155

Filamento Vf 5 Volt / If 10 Ampere / Direct / Specified voltage AC/DC
Descrizione

Pa = 150W
This gridless GAMMATRON was developed so as not to infringe with the Lee de Forest patent (owner RCA) on the control grid. Instead, the plate close to the filament has influence on the electron flow towards the other plate (anode). Tube was advertised on back cover of the 1936 Jones Radio Handbook. Production was limited.

 
Testo in altre lingue (può variare)
Bibliografia Tube Lore (II)   p. 217

hk_gammatron_1.png
HK155: F.C. Jones
Wolfgang Holtmann

 

[rmxtube-en]
  

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