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4K170

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ID = 15226
       
Country:
Germany
Brand: TeKaDe (TKD), Süddeutsche Telefon-Apparate- Kabel- und Drahtwerke; Nürnberg
Tube type:  Triode, vacuum   Power/Output 
Identical to 4K170 = 73402
Similar Tubes
Normally replaceable-slightly different:
  KL73404
First year 1929 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Mar.1929 : Funk Bastler Heft 11, 1929

Base 4-socket Germany (Codex=Eo)
Filament Vf 4 Volts / If 1.7 Ampere / Direct / Specified voltage AC/DC
Tube prices 4 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   

d_tekade_4k170_europa_buchsen.png 4K170: 25 Jahre Telefunken
Wolfgang Eckardt

More ...

Just Qvigstad
4k110_4k170_dat~~1.png
4K170: Röhren-Handbuch 1995 Franzis-Verlag
Heinz Höger

Collection of

 
roehre_4k170_bild_2.jpg

4K170
 

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