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IW4-500

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ID = 31166
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  LOCKED OFF PART (CODE 9) - see in Notes 
Identical to IW4-500

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Description

Please See under IW4/500, the alternative name used in some documents

 
Information source Taschenbuch zum Röhren-Codex 1948/49   


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