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E443N

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ID = 1706
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Vacuum Pentode   Power/Output 
Identical to E443N = 252 = TE43N = L491D = PP4100
Similar Tubes
Normally replaceable-slightly different:
  Dn1004 ; G100 ; HP5025 ; TP4100
Other characteristic (electr. data):
  E443 ; E443H
Heater different:
  RES664d
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 , B5 (Eu O, F, O5A) 1928 (Codex=Foo)
Filament Vf 4 Volts / If 1 Ampere / Direct / Specified voltage 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)
Information source - - Manufacturers Literature   
Röhren-Vademecum; P.H. Brans; Antwerpen   p. 33
Taschenbuch zum Röhren-Codex 1948/49
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

e443n.gif
E443N: ficha de valvulas
Getulio Jimenez-Gomez

4_10.png E443N: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
daten_e443n_philips.png
E443N: Philips Verstärkerröhren
Gerhard Heigl

More ...
Usage in Models 5= 1930 ; 1= 1931?? ; 3= 1931 ; 1= 1932? ; 13= 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):33


Collection of

 
_dsc0303_a.jpg

E443N
 

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