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E443N

Information - Help 
ID = 1706
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Vacuum Pentode   Power/Output 
Identical to E443N = L491D = PP4100 = 252 = TE43N
Similar Tubes
Normally replaceable-slightly different:
  Dn1004 ; G100 ; TP4100
Other characteristic (electr. data):
  E443 ; E443H
Other base:
  E443N_UY
First year 1930 Tube leaflet collection E.Erb Analysis by original leaflets
First Source (s)
Jul.1930 : -- Original-techn. papers.
Predecessor Tubes E443   E443_4pin  
Successor Tubes E443H  

Base Europe 5-Pin (O5A, B5) (Codex=Foo)
Filament Vf 4 Volts / If 1 Ampere / Direct / Parallel, (AC/DC)
Description With 5.5 watts the output power of the E443(N) was increased to almost twice of the C443. To do so, it required 400 volts as anode and 200 volts as screen voltage 
Text in other languages (may differ)
Literature Taschenbuch zum Röhren-Codex 1948/49   
  e443n.gif
  E443N: ficha de valvulas
Getulio Jimenez-Gomez
 
e443n_01.jpg
E443N: Collection TL
Thomas Lebeth

 
4_10.png
E443N: Telefunken Werkstattbuch
Wolfgang Bauer

 
daten_e443n_philips.png
E443N: Philips Verstärkerröhren
Gerhard Heigl


Usage in Models 4= 1930 ; 1= 1931?? ; 3= 1931 ; 1= 1932?? ; 10= 1932 ; 2= 1933?? ; 1= 1933 ; 3= 1934 ; 1= 1935? ; 1= 1936?? ; 2= 1939

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):29



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