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Audion_Mullard

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ID = 61376
       
 
   
Tube type:  TRIODE (Detail uncertain) 
  <1925 very rare. ***
Identical to Audion_Mullard

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Direct / Battery =
Description

Looks to be a very early prototype of an Audion-like bulb on a 4-pin French base.
No info on data or production.

 
Information source -- Collector info (Sammler)   
 
r_tipo_audion_3.jpg
Audion_Mullard: collezione privata
Davide Casarosa

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from Just Qvigstad


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