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Microthoram

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ID = 49293
       
Country:
France
Brand: LSI (L.S.I.) Société; Le Pré-St-Gervais, Paris
Tube type:  Triode, vacuum   Universal 
  <1925 very rare. ***
Identical to Microthoram

Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Information source -- Original prospect or advert   Excelsior, 22.08.1925
-- Original prospect or advert   L'Antenne, Paris, dec. 1925

Collection of

 
microthoramsmall.jpg

Microthoram
 

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