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E414_Philips

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ID = 52480
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to E414_Philips
Similar Tubes
Normally replaceable-slightly different:
  100AC
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.9 Ampere / Half indirect / Battery =
Description

According to the attached data sheet, the Philips E 414 is a special indirectly heated triode for microphone amplifiers. It is normally supplied with a B4 socket, with the cathode connected to the heater. Babani and other tube tables mention a B5 socket. Not to be confused with Triotron's E 414, which is a directly heated battery tube.

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip		 50 x 102 x 34 mm / 1.97 x 4.02 x 1.34 inch
Weight 36 g / 1.27 oz
Information source - - Manufacturers Literature   1930
Babani, International Radio Tube Encyclopaedia   p. 100 & 101
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
e414_base.png E414_Philips: Peter den Boer
Wolfgang Holtmann

Just Qvigstad 		e414data1.png
E414_Philips: own collection
Peter den Boer
More ...

Collection of

Gerhard Heigl (A)
Peter den Boer (NL)
 
e414_2.jpg

E414_Philips
 
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