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A235_Philips

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ID = 55039
       
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 A235_Philips
Similar Tubes
Normally replaceable-slightly different:
  210H
Heater different:
  A435 ; A635
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Sidecontact and top contact.
Was used by Radio/TV-reception etc.
Filament Vf 2 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   1927
L'ABCDaire des lampes de TSF des jeunes années   p. 11
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Röhrencodex , Röhren-Taschenbuch 1950 23000 Röhren
1_11~~2.png A235_Philips: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		a235.png
A235_Philips: own collection
Peter den Boer
 
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