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H406D

Information - Help 
ID = 1641
       
Country:
Germany
Brand: Valvo Radioröhrenfabrik GmbH; Hamburg
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to H406D = RES094
Similar Tubes
Normally replaceable-slightly different:
  S409
First year 1928 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Jul.1928 : Funk Bastler 1928, Heft 31

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=Er) Top contact screw type
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =
Tube prices 3 Tube prices (visible for members only)
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
h406d_1.jpg
H406D
Roland Biesler

 
3_8.png
H406D: Telefunken Werkstattbuch
Wolfgang Bauer

 
vv34_05.png
H406D: JR
Jacob Roschy


Usage in Models 1= 1928? ; 2= 1928 ; 1= 1929 ; 1= 1930 ; 1= 1931 ; 1= 1936

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):7



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