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E425_Triotron

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ID = 14177
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Developer: Triotron (tubes) = Brand of Schrack, Austria 
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to E425_Triotron = C405
Similar Tubes
Normally replaceable-slightly different:
  LK430
First year 1930 Tube leaflet collection E.Erb Analysis by original leaflets

Base Europe 4-Pin (A, 4A, B4, since 1914) (Codex=F)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.3 Ampere / Direct / Parallel, (AC/DC)
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1935
 
e425_2.jpg
E425_Triotron: Röhrensammlung
Wolfgang Bauer

 
e425_triotron_so.png
E425_Triotron: rtt
Michael Schlör

 
e425data.png
E425_Triotron: own collection
Peter den Boer



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