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ID = 19029
Brand: Péricaud, G. et A. Péricaud Fils (SEP, S.E.P.); Paris
Tube type:  Triode, vacuum   Detector 
  <1925 very rare. ***
Identical to Junot-Detecteur
First Source (s)
03.Nov.1923 : La Nature

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 4 Volts / If 0.65 Ampere / Direct / Battery =

A nickel plated brass based tipped top tube. It is called "Detecteur" or "Triode Junot-Detecteur". A wild tube that attempts to avoid basic patents on the triode.... It has 6 discs with holes punched in the center stacked one above the other with the unconventional grid and filament passing through the centers. See also Peri-Tube at This tube has two filaments. An extra wire through the ceramic bottom of the base has to wound arond one filament pin to connect the second filament. Anode volts 50-80 Volt.

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Tube prices 2 Tube prices (visible for members only)
Junot-Detecteur: EE
Ernst Erb

More ...
Junot-Detecteur: Publicité
Patrice Zeissloff

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