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W411

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ID = 15046
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Tube type:  Triode, vacuum 
Identical to W411
Similar Tubes
Normally replaceable-slightly different:
  W420
First Source (s)
Aug.1931 : Funk Bastler 1931 Heft 33

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Tube prices 1 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
w411.jpg
W411: Herbert Schmidt
Herbert Schmidt

 
1_61.png
W411: Telefunken Werkstattbuch
Wolfgang Bauer

 
vv34_10.png
W411: JR
Jacob Roschy


Usage in Models 1= 1927 ; 1= 1938??

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):2


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