Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 2506
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 = RENS1234 = FH4105 = NSS44 = H426N = TE49 = X4123
Similar Tubes
Normally replaceable-slightly different:
First year 1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Apr.1933 : Philips Bulletin #D6
Oct.1933 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Successor Tubes AH1  

Base Europe 7-Pin C7A (Hx C, C7, C) 1933 (Codex=La)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.2 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   

E449: ficha de valvulas
Getulio Jimenez-Gomez

10_3.png E449: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
E449: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 1= 1931 ; 2= 1933?? ; 5= 1933? ; 13= 1933 ; 1= 1934? ; 7= 1934 ; 3= 1935 ; 2= 1939

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):34

Collection of




Dimensions W x H x D = 49 x 155 x 35 mm.

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]