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H406Ds

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ID = 2518
       
Country:
Germany
Brand: Valvo GmbH, Radioröhrenfabrik; Hamburg
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to H406Ds
Similar Tubes
Heater different:
  H406D
First year 1930 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Specified current DC = (Series working)
Description

Selektierte Röhren der H406D für Serienheizung.

 


Just Qvigstad
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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