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U550

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ID = 16841
       
Country:
Germany
Brand: Radioröhren-Laboratorium-GmbH, Gerd Nickel, (Ultra); Berlin
Tube type:  Gas Triode   Audio Frequency 
Identical to U550

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 1.1 Volts / If 0.55 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
-- Collector info (Sammler)   H.Wigge, Rundfunktechnisches Handbuch, 1.Teil,1925


Just Qvigstad
u550_data.png
U550: H.Wigge, Rundfunktechnisches Handbuch, 1.Teil, 1925, S.174
Anonymous 15 Collector

 

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]
  

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