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102A

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ID = 28938
       
Country:
United States of America (USA)
Brand: Western Electric Company Inc.; New York (NY)
Tube type:  Triode, vacuum 
Identical to 102A = V_Western
First year 1915 Saga of the Vacuumtube, Tyne page 97

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Filament Direct / Battery =
Description Other code designation for the V repeater bulb, for higher "voltage" amplification. But also higher output impedance, which required an L tube as second (power) stage. 
Tube prices 2 Tube prices (visible for members only)
 
usa_western_electric_102_a_tube.jpg
102A: Ebay photo
Lindsay Shepherd

 

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