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3B25

Information - Help 
ID = 6804
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Developer: RCA (RCA Victor Co. Inc.); New York (NY) 
Tube type:  Half-Wave Rectifier, gasfilled   Power-supply 
Identical to 3B25
First Source (s)
21.Aug.1944 : Electron Tube Registration List 386

Base UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Brr) Top contact with a cap
Filament Vf 2.5 Volts / If 5 Ampere / Direct
Description 4000V PIV, 0.5A max average current, 2A peak, 20A surge at 500Hz max. 30s minimum preheating. 
Dimensions (WHD)
incl. pins / tip
52 x 135 x mm / 2.05 x 5.31 x inch
Tube prices 3 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
  3b25_app.png
  3B25: Manufacturer's Literature
Emilio Ciardiello
 
3b25.jpg
3B25: 3b25
Juan Antonio Pardo-Alonso

 
sockelbild3b25.png
3B25: Vade Mecum P.H.BRANS
Willy De Grande

 
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3B25: RCA Transm. Tubes 1956
Otto Frosinn



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