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D2_Y

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ID = 85855
       
Country:
Netherlands
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum   Universal 
  <1925 very rare. ***
Identical to D2_Y
Similar Tubes
Other base:
  D-II ; D2
Production stop 1927

Base 4-pin French Y-base
Was used by Radio/TV-reception etc.
Filament Vf 3.5 Volts / If 0.5 Ampere / Direct / Battery =
Description

Uf=3,5VDC, If=0,5A, Ua=30-75V. In 1925 und 1926 Ua = 40-100V. Röhren mit dem Aufdruck "Serie" sind zur Heizung mit einem Eisen-Serienwiderstand für 6V-Batterie vorgesehen. Die gleiche Röhre heisst in 1921 biss 1925 D II bzw., zeigt also eine römische Nummer (ohne Bindestrich).

 
Information source -- Collector info (Sammler)

culot_y_sockel~~2.png D2_Y: KoBi
Konrad Birkner † 12.08.2014


Just Qvigstad
d2_spec~~1.png
D2_Y: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

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