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4A7_Ultron

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ID = 13241
       
Country:
Belgium
Brand: Ultron (tubes)
Tube type:  Triode, vacuum   Audio Frequency 
Identical to 4A7_Ultron = E499

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.2 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

4a7_so.png 4A7_Ultron: rtt
Anonymous 10 Collector


Just Qvigstad
 

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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