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E449

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ID = 2506
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Telefunken Deutschland (TFK), (Gesellschaft für drahtlose Telegraphie Telefunken mbH 
Tube type:  HEXODE   RF/IF-Stage   Controlling (mu) 
Identical to E449 = X4123 = RENS1234 = FH4105 = NSS44 = TE49
Similar Tubes
Normally replaceable-slightly different:
  W449
First year 1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Apr.1933 : Philips Bulletin #D6
Successor Tubes AH1  

Base Europe 7-Pin (C7A, C, 1933) (Codex=La)
Filament Vf 4 Volts / If 1.2 Ampere / Indirect /
Literature Taschenbuch zum Röhren-Codex 1948/49   

  e449.gif
  E449: ficha de valvulas
Getulio Jimenez-Gomez
 
e449_miniwatt_ph1r.jpg
E449: Patrice ZEISSLOFF
Patrice Zeissloff

 
10_3.png
E449: Telefunken Werkstattbuch
Wolfgang Bauer

 
e449_spec.png
E449: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector


Usage in Models 1= 1931 ; 1= 1933? ; 11= 1933 ; 7= 1934 ; 3= 1935 ; 2= 1939
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):25

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