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ID = 14538
Brand: Niggl Hochvakuum-Röhren GmbH, München.
Tube type:  TRIODE (Detail uncertain) 
Identical to NA406H
First Source (s)
Sep.1927 : Funk Bastler 1927 Heft 39

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Filament Vf 3.6 Volts / If 0.06 Ampere / Direct
Dimensions (WHD)
incl. pins / tip
36 x 69 x mm / 1.42 x 2.72 x inch
Information source Taschenbuch zum Röhren-Codex 1948/49   
NA406H: J.S.
Jörg Seidel

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NA406H: Tabu Röhren-Codex, 1948
Anonymous 15 Collector

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NA406H: Funk-Bastler 1927, Heft 39
Hartmut Völler

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