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B442_SERIE_100

Information - Help 
ID = 31110
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to B442_SERIE_100
Similar Tubes
Normally replaceable-slightly different:
  A2004S
Heater different:
  B442

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Series, DC
Description

Selected B442 tube for 100 mA serial heating.

 
Text in other languages (may differ)
 
b442_serie_100.jpg
B442_SERIE_100: Aus eigener Sammlung
Pim J.H. Vercoulen

 
3_5~~1.png
B442_SERIE_100: Telefunken Werkstattbuch
Wolfgang Bauer

 

from Just Qvigstad


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