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P441N

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ID = 11425
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Developer: Triotron (tubes) = Brand of Schrack, Austria 
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to P441N = RENS1384 = APP4130 = L4138D = E463
Successor Tubes 1935   AL2  

Base Europe 6-Pin B6 (Hx B) 1933 (Codex=Ld)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.35 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1935
Babani, International Radio Tube Encyclopaedia

11_5.png P441N: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
triotron_7_1~~1.png
P441N: Triotron Röhrenkatalog von 1942
Wolfgang Bauer

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