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CL172

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ID = 28448
       
Country:
France
Brand: Métal; France (tubes)
Tube type:  Triode, vacuum   Universal 
Identical to CL172
First year 1925 ?? Saga of the Vacuumtube, Tyne Seite 402

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament
Description for resistance-capacity coupled RF and AF circuits. 
 

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