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ID = 3711
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Diode-Triode   Audio Frequency 
Identical to E444S = REN924 = A4DP1 = WE29 = 5-444S = TE44S = AN4092
Similar Tubes
Other shape (e.g. bulb type):
Other base and data slightly different:
First year 1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Apr.1933 : Philips Bulletin #D6
Sep.1933 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Successor Tubes ABC1  

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=F) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC

Philips = REN924 (E444=RENS1254)

Information source Taschenbuch zum Röhren-Codex 1948/49   

E444S: ficha de valvulas
Getulio Jimenez-Gomez

8_5.png E444S: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad
E444S: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 9= 1933 ; 1= 1934? ; 9= 1934 ; 2= 1935

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):21

Collection of




Dimensions W x H x D = 45 x 137 x 35 mm.

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