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ID = 28903
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-16
Similar Tubes
Multiple differences or of other kind:
First year 1918 ?? Saga of the Vacuum Tube, Tyne page 153

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This tube is a replacement for the VT-14 and was originally made with a Shaw base. The tube was in its final stages of development by GE for the US Signal Corps when World War One had just ended. The tube is a transmitting type and has a ruggedised construction which made it more suitable for use in military air craft.

Information source Saga of the Vacuum Tube, Tyne   Page 153
- - Manufacturers Literature   
Tube Lore (II)

uv~~71.png VT-16: Fin Stewart
Fin Stewart

Just Qvigstad


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