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L414_Tungsram

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ID = 19725
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Developer: Tungsram; Budapest (see also British T.) 
Tube type:  Triode, vacuum   Power/Output 
Identical to L414_Tungsram = B409
Similar Tubes
Normally replaceable-slightly different:
  DT6 ; E4_Kremenezky

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 4 Volts / If 0.15 Ampere
Description Siehe Valvo L414 mit anderen Daten ! 
Tube prices 2 Tube prices (visible for members only)
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
img_20190115_191708.jpg
L414_Tungsram: O.J.
Ottó Jancsek

 
1_209.png
L414_Tungsram: Telefunken Werkstattbuch
Wolfgang Bauer

 
l414_daten_kennlinie.png
L414_Tungsram: Tungsram Röhrenkatalog 1928
Thomas Lebeth


from Just Qvigstad

Usage in Models 6= 1929 ; 2= 1930

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):8


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