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Duotron4

Information - Help 
ID = 15781
       
Country:
Germany
Brand: Radioröhren-Laboratorium-GmbH, Gerd Nickel, (Ultra); Berlin
Tube type:  Double Triode   Power/Output 
Identical to Duotron4

Filament Vf 4 Volts / If 0.15 Ampere
Literature Taschenbuch zum Röhren-Codex 1948/49   
 
ultra_elektrische_daten_10.png
Duotron4: J.S.
Jürgen Stichling


Usage in Models 1= 1927

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

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