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IW4/350

Information - Help 
ID = 7942
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to IW4/350
Similar Tubes
Normally replaceable-slightly different:
  IW4 ; R2

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Em)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Half indirect
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
iw4350.jpg
IW4/350: Ingo Moll
Anonymous 557 Collector

 
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IW4/350: Telefunken Werkstattbuch
Wolfgang Bauer

 
iw4350_techdat01.png
IW4/350: Mullard Valves 1936
Peter Hoddow


from Just Qvigstad

Usage in Models 4= 1936? ; 23= 1936 ; 1= 1937? ; 21= 1937 ; 2= 1938? ; 10= 1938 ; 1= 1939?? ; 2= 1939 ; 1= 1946 ; 1= 9999

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):66


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