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W410

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ID = 1340
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Tube type:  Triode, vacuum   Audio Frequency 
Identical to W410 = B438
First year 1930 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
w410.jpg
W410: Röhrensammlung
Wolfgang Bauer

 
1_64.png
W410: Telefunken Werkstattbuch
Wolfgang Bauer

 
w410_spec.png
W410: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 1= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1


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