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W406

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ID = 2022
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Tube type:  Triode, vacuum   Audio Frequency 
Identical to W406 = RE034
Similar Tubes
Normally replaceable-slightly different:
  A406 ; W412 ; W420
First year 1927 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Sep.1927 : Funk Bastler 1927 Heft 39

Base Europe 4-Pin (A, 4A, B4, since 1914)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Tube prices 3 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
w406_3.jpg
W406
Roland Biesler

 
1_60.png
W406: Telefunken Werkstattbuch
Wolfgang Bauer

 
vv34_09.png
W406: JR
Jacob Roschy


Usage in Models 1= 1927 ; 3= 1928?? ; 2= 1928? ; 4= 1928 ; 1= 1929 ; 1= 1930 ; 1= 1931

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):13


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