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25U4

Information - Help 
ID = 22048
       
 
   
Tube type:  Half-Wave Vacuum Rectifier 
Identical to 25U4
Similar Tubes
Other shape (e.g. bulb type):
  25U4GT
Heater different:
  6U4

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 25 Volts / If 0.3 Ampere / Indirect / Series, AC/DC
Literature Röhren-Taschen-Tabelle, (Franzis RTT)   
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oc60_g_16.gif
25U4: RTT Schwandt
Günther Stabe

 

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