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E447

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ID = 1733
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Vacuum Pentode   RF/IF-Stage   Controlling (mu) 
Identical to E447 = H4129D = RENS1294 = A4AMS = A4AMS2 = TE47 = NVS43 = WE24 = LAS324 = HP4106 = RS4347 = S432 = VMP4 = 4A10_Ultron = 5-447
Similar Tubes
Other shape (e.g. bulb type):
  T5-447
Normally replaceable-slightly different:
  DH204 ; MT4110 ; S434N ; T4700 ; TM-C3G-PV ; VH2 ; W447 ; W519
Other characteristic (electr. data):
  AF2
Heater different:
  B2047
Other base:
  E447_UX7 ; NVS43_B5+1
Other base and data slightly different:
  HP4105
First year 1933 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Apr.1933 : Philips Bulletin #D6
Apr.1933 : L'Histoire Singulière du Tube Radio; G. Duperray 2009
Predecessor Tubes E455  
Successor Tubes AF2   AF3  
Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fco) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1.1 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
  e447.gif
  E447: ficha de valvulas
Getulio Jimenez-Gomez
 
e447_philips.jpg
E447
Anonymous 557 Collector
More ...
 
13_6~~3.png
E447: Telefunken Werkstattbuch
Wolfgang Bauer
 
e447_spec.png
E447: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector
More ...

from Just Qvigstad
Usage in Models 3= 1933?? ; 5= 1933? ; 50= 1933 ; 1= 1934?? ; 8= 1934? ; 59= 1934 ; 1= 1935?? ; 4= 1935? ; 21= 1935 ; 2= 9999
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):154
Collection of a member from D
Collection of Thomas Lebeth (A)
Collection of Rudolf Osterkamp (D)
Collection of Wolfgang Bauer (A)
Collection of Heinz Schmidt (D)
Collection of Christian ADAM (F)
Collection of John Koster (NL)
Collection of a member from FIN
Collection of Tomasz Szczesniak (PL)
Collection of Jean-Jacques Pontigny (F)
Collection of Roberto Guidorzi (I)
Collection of Jose Luis Villabona Horreo (E)
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