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A411

Information - Help 
ID = 1330
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Tube type:  Triode, vacuum 
Identical to A411
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 =
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
a411_valvo_1.jpg
A411
Klaus Rüdiger

 
1_5.png
A411: Telefunken Werkstattbuch
Wolfgang Bauer

 
vv34_08.png
A411: JR
Jacob Roschy


Usage in Models 1= 1929 ; 3= 1933 ; 1= 1935?? ; 1= 1938??

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


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