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274B

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ID = 7451
       
Country:
United States of America (USA)
Brand: Common type USA tube/semicond.
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to 274B = CV684
Similar Tubes
Normally replaceable-slightly different:
  5R4G

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Vy)
Filament Vf 5 Volts / If 2 Ampere / Direct
Tube prices 2 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   

274b_sock.png 274B: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

More ...

Just Qvigstad
Usage in Models 2= 1947??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2

Collection of

 
274b.jpg

274B
 

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