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E415_4pin

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ID = 31985
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum   Universal 
  Ca. 1925 up to 1945 rare.
Identical to E415_4pin
Similar Tubes
Other base:
  E415 ; E415_UX
First Source (s)
1928 : Saga of the Vacuum Tube, Tyne p.422

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Sidecontact
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.9 Ampere / Indirect / Parallel, (AC/DC)
Description there is also a 5pin version. Detector and LF amplification. 
Tube prices 2 Tube prices (visible for members only)
Information source - - Manufacturers Literature   R650DU 10-1-1929
 
e415.jpg
E415_4pin: Philips E415, 1928
John Hupse

 
e415-ws1507-ws3030pin4sc.png
E415_4pin
Peter den Boer

 
e415data.png
E415_4pin: own collection
Peter den Boer


from Just Qvigstad

Usage in Models 2= 1928 ; 1= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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