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12BW4

Information - Help 
ID = 5329
       
 
   
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 12BW4
Similar Tubes
Heater different:
  6BW4

Base Noval, 9 pin miniature (USA pico-9) B9A
Was used by Radio/TV-reception etc.
Filament Vf 12.6 Volts / If 0.45 Ampere / Indirect / Parallel, (AC/DC)
Tube prices 2 Tube prices (visible for members only)
Information source Essential Characteristics, GE 1973   
  12bw4.png
  12BW4: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
 
12bw4.jpg
12BW4
Philip O'Shields

 
no187_g~~1.gif
12BW4: RTT Schwandt
Günther Stabe † 19.8.20

 
12bw4_dat.png
12BW4: RCA Receiving Tube Manual
Heinz Höger


from Just Qvigstad

Usage in Models 1= 1958 ; 5= 1961? ; 1= 1962? ; 2= 1966?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):9


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