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ID = 28838
United States of America (USA)
Brand: Westinghouse El. & Mfg. Co. - see also Canadian W.
Developer: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to UV196 = PR196
First year 1925 Saga of the Vacuum Tube, Tyne page 324

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Radio/TV-reception etc.
Filament Vf 4.25 Volts / If 1.1 Ampere / Direct

Work started on development of this tube at the Westinghouse facility in Bloomfield, New Jersey early in 1925. It was available and announced to the public on October 19, 1925.

Two separate filaments, each drawing 0.55 amp; single common anode connected to the base shell. The tube was mainly used in the Dubilier "Super Ducon" B battery eliminator. It is believed that the unusual element design may have originated in Europe. 

Dimensions (WHD)
incl. pins / tip
x x 50 mm / x x 1.97 inch
Information source -- Collector info (Sammler)   
Alan Scott Douglas † 16.11.15


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