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IW4/350

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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:
  A11D ; IW4 ; R2 ; UF41_Clarion
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)
Successor Tubes A11D  
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
Description

Tube listed in Taschenbuch 1948/49 and Rohren Coodex 1950 as 1W4/350

 
Information source History of the British Radio Valve to 1940   p. 149 & 176
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 25, p. 23
Babani, International Radio Tube Encyclopaedia
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
150_7.png IW4/350: Telefunken Werkstattbuch
Wolfgang Bauer

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

Collection of

Pedro Prieto-Castro (E)
Collection of a member from D
Karlheinz Fischer (D)
 
iw4350.jpg

IW4/350
 
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