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A635

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ID = 54207
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Audio Frequency 
  Ca. 1925 up to 1945 rare.
Identical to A635
Similar Tubes
Other characteristic (electr. data):
  A435
Heater different:
  A235_Philips
Other base:
  A635_UX4

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 6 Volts / If 0.06 Ampere / Direct / Battery =
Description

HF amplification. The anode can be connected by the top screw cap (wire has to be removed), or by the anode pin (wire in place).

 
Information source - - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia   p. 44 & 45
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

1_11~~1.png A635: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
a635.png
A635: own collection
Peter den Boer

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