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ID = 28948
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to 204B = W_Western
First Source (s)
1915 : Saga of the Vacuum Tube, Tyne p.104, 105

Filament Vf 9 Volts / If 4 Ampere
Description Banks of such tubes were employed for the radiotelephony tests Arlington-Paris. 1925. 
Information source Saga of the Vacuum Tube, Tyne   page 105, 106, 280

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