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ID = 28900
United States of America (USA)
Brand: General Electric Co. (GE); Bridgeport CT, Syracuse NY
Developer: General Electric Co. (GE); Bridgeport CT, Syracuse NY 
Tube type:  Triode, vacuum   Text 
  <1925 very rare. ***
Identical to VT-12
Successor Tubes 1918   CG-1162   VT-14  

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Military and/or Government
Filament Vf 7.5 Volts / If 1.75 Ampere / Direct / Battery =

This tube is a low power oscillating triode used for telephone transmitters and was made as a substitute for the Western Electric VT2. It was fitted with the Shaw Standard base and was also known as the type T Pliotron. The type no VT12 was designated by the US Signal Corps. It was only used briefly before being replaced with the VT14 which has a different filament design.

Dimensions (WHD)
incl. pins / tip
x 105 x 45 mm / x 4.13 x 1.77 inch
Tube prices 1 Tube prices (visible for members only)
Information source Saga of the Vacuum Tube, Tyne   page 149, 150
Tube Lore (II)   p. 179

uv~~66.png VT-12: Fin Stewart
Fin Stewart

Just Qvigstad

Collection of



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