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25Z4GT

Information - Help 
ID = 7361
       
Country:
United States of America (USA)
Brand: Hytron; Salem (MA)
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to 25Z4GT
Similar Tubes
Other shape (e.g. bulb type):
  25Z4 ; 25Z4G
First Source (s)
06.Jun.1939 : Electron Tube Registration List

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ui)
Was used by Radio/TV-reception etc.
Filament Vf 25 Volts / If 0.3 Ampere / Indirect / Series, AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
25z4g~~1.png
25Z4GT: ARRL Handbook 1972
Michael Schlör

 
25z4gt_hytron.png
25Z4GT: https://frank.pocnet.net/sheets/201/2/25Z4GT.pdf
Tim Küpper


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