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ID = 68007
United States of America (USA)
Brand: Amplion USA = Tube brand
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Triode, vacuum   Audio Frequency 
  <1925 very rare. ***
Identical to D_Amplion = WD12 = Junior_Concertmaster = 4612_WLS

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 1.1 Volts / If 0.06 Ampere / Direct / Battery =

Tube made late in 1924 and distributed by the Export Radio Products Co. Tubes with this brand were advertised as available as late as July 1931. These were standard types of the day. The brand name is listed on page 351 of Tynes' Saga of the vacuum Tube but the Manufacturers address is unknown.

Information source -- Collector info (Sammler)   
D_Amplion: Fin Stewart collection
Fin Stewart

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D_Amplion: Fin Stewart
Fin Stewart


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