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E444

Information - Help 
ID = 1724
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Diode-Tetrode   Universal 
Identical to E444 = RENS1254 = A4DP = TE44 = NDS42 = WE26 = DS4100 = B430N = RS4144 = RS4344 = TE444 = 5-444 = AN4126
Similar Tubes
Other shape (e.g. bulb type):
  T5-444
Normally replaceable-slightly different:
  4A14 ; A4DF ; DT3_Zenith ; E507 ; SB4100 ; T4400 ; W444
Heater different:
  B2044
Other base:
  E444_B5+1 ; E444_UX6
Differences not known by us:
  E444N
First year 1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Apr.1933 : Philips Bulletin #D6
Jun.1932 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Successor Tubes 1937   EBF1   EBF2   DT4  
Base Europe 6-Pin B6 (Hx B) 1933 (Codex=Le) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere / Indirect / Specified voltage AC/DC
Tube prices 2 Tube prices (visible for members only)
Information source - - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia   p. 100 & 101
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49
e444.gif
E444: ficha de valvulas
Getulio Jimenez-Gomez
12_7.png E444: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		e444_spec.png
E444: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...
Usage in Models 2= 1933?? ; 14= 1933? ; 74= 1933 ; 2= 1934?? ; 7= 1934? ; 86= 1934 ; 8= 1935? ; 39= 1935 ; 2= 1936? ; 12= 1936 ; 1= 1937?? ; 1= 1937 ; 1= 1938 ; 1= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):250

Collection of

Peter Hoddow (D)
Georges Werts (B)
Christian ADAM (F)
John Koster (NL)
Tomasz Szczesniak (PL)
Jacob Roschy (D)
Collection of a member from D
Fernando Monteiro (P)
Collection of a member from FIN
Alexander Hofer (A)
Peter Pfeiffer (D)
Tor Steinnes (N)
Ottmar Rollmann (D)
Danko Tkalec (HR)
 
e444_ppgl_rn.jpg

E444
 
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