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ID = 51962
Brand: Bal-Tubes (Pope and Philips made); Breda
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Triode, vacuum 
  <1925 very rare. ***
Identical to Transmitter2 = Generatorlamp = Generatorl_Ideezet
Production stop 1920

Base Swan-Bayonett size not known Base on each end.
Filament Vf 6 Volts / If 1.6 Ampere / Direct
Description On the top base is printed: Bal Radio, Breda Holland, 1.6 Amp 6V. On the glass is etched Philips. On the lower base is printed: Plaat, Hoogvacuum, Max 500 Volt. 
Dimensions (WHD)
incl. pins / tip
30 x 150 x mm / 1.18 x 5.91 x inch
Information source Radio-Nieuws, Netherlands (RN, 78)   1-2-1920
Transmitter2: Electriciteits Museum, Hoenderloo
Peter den Boer


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