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A408

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ID = 1632
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Tube type:  Triode, vacuum   Universal 
Identical to A408
Similar Tubes
Normally replaceable-slightly different:
  A420 ; RE084
First year 1926 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Eo)
Filament Vf 4 Volts / If 0.08 Ampere / Direct / Battery =
Tube prices 6 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
a408_2.jpg
A408
Roland Biesler

 
1_1.png
A408: Telefunken Werkstattbuch
Wolfgang Bauer

 
vv34_07.png
A408: JR
Jacob Roschy


Usage in Models 1= 1926? ; 2= 1926 ; 4= 1928?? ; 4= 1928? ; 7= 1928 ; 2= 1929?? ; 2= 1929? ; 2= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):24



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