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W410

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ID = 1340
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; 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 B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   

w410.png
W410: Lorophon G
Egon Strampe

1_64.png W410: Telefunken Werkstattbuch
Wolfgang Bauer


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

Usage in Models 3= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3

Collection of

 
w410.jpg

W410
 

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