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4L12

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ID = 15228
       
Country:
Germany
Brand: TeKaDe (TKD), Süddeutsche Telefon-Apparate- Kabel- und Drahtwerke; Nürnberg
Tube type:  Triode, vacuum   Power/Output 
Identical to 4L12
First year 1929 Tube leaflet collection E.Erb Analysis by original leaflets

Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.5 Ampere / Direct / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

4l12_sock.png 4L12: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

4l12_spec.png
4L12: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

Collection of

 
4l12.jpg

 

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