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ID = 28959
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  High-vacuum Rectifier   Power-supply 
Identical to 219A
First year 1923 Saga of the Vacuumtube, Tyne page 291
Successor Tubes 1926   219D  

Filament Vf 13 Volts / If 6.265 Ampere
Description Essentially the 212A with the grid omitted and reduced filament-anode spacing.
1250V, 250mA. 
Literature Saga of the Vacuumtube, Tyne   
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