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A1

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ID = 28454
       
Country:
France
Brand: Microlux, A. Bertrand; Paris
Tube type:  Triode, vacuum   Universal 
Identical to A1
Similar Tubes
Other base:
  199
First year 1924 ?? Saga of the Vacuum Tube, Tyne Seite 410

Filament Vf 3.5 Volts / If 0.06 Ampere / Direct / Battery =
Information source - - Manufacturers Literature   

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A1: own collection
Peter den Boer

Collection of

 
a1_tube_1.jpg

A1
 

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