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R42

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ID = 14638
       
Country:
France
Brand: Dario (tubes) - voir aussi La Radiotechnique
Tube type:  Triode, vacuum   Universal 
Identical to R42
Similar Tubes
Normally replaceable-slightly different:
  RE144
First year 1926 Saga of the Vacuumtube, Tyne page 403
First Source (s)
1926 : Saga of the Vacuumtube, Tyne p.403

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
 
f_r42_dario_eb1.jpg
R42: ma collection
Anonymous 550 Collector

 

Usage in Models 1= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of a member from CH

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