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R56

Information - Help 
ID = 3522
       
Country:
France
Brand: La Radiotechnique (RT); Paris, Suresnes
Tube type:  Triode, vacuum   Power/Output 
Identical to R56
Similar Tubes
Normally replaceable-slightly different:
  B406
First year 1928 Saga of the Vacuumtube, Tyne page 403

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Description

Französische Endröhre der Mitte-20er Jahre.

 
Tube prices 1 Tube prices (visible for members only)
Literature - - Manufacturers Literature   
Taschenbuch zum Röhren-Codex 1948/49   
 
rt56_1.jpg
R56: Sammlung F. Schaffhauser
Felix Schaffhauser

 
1_202.png
R56: Telefunken Werkstattbuch
Wolfgang Bauer

 
r56dariodatasmall.png
R56: own collection
Peter den Boer


Usage in Models 1= 1927 ; 1= 1928?? ; 1= 1928? ; 5= 1928 ; 4= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):12


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