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ID = 14635
Brand: La Radiotechnique (RT); Paris, Suresnes
Tube type:  Triode, vacuum   Universal 
  <1925 rare.
Identical to R15
First year 1924 Saga of the Vacuum Tube, Tyne page 402

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =

For resistance-coupled RF and AF stages. The brand is Radiotechnique.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
38 x 100 x mm / 1.50 x 3.94 x inch
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1924
R15: Frank Philipse mit freundl. Genehmigung
Felix Schaffhauser

R15: RöhrenTaschenTabelle Francis
Felix Schaffhauser

R15: Frank Philipse mit freundl. Genehmigung
Felix Schaffhauser

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from Just Qvigstad

Usage in Models 1= 1925? ; 1= 1925 ; 1= 1926?? ; 1= 1926? ; 2= 1926

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):6

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