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VT-11

Information - Help 
ID = 28899
       
Country:
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   Universal 
  <1925 very rare. ***
Identical to VT-11
Similar Tubes
Normally replaceable-slightly different:
  VT-1
Other base:
  CG-886
Predecessor Tubes G_Pliotron  
Successor Tubes 1918   CG-890  

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Was used by Military and/or Government
Filament Vf 4 Volts / If 1.1 Ampere / Direct / Battery =
Description

According to Sibley, VT-11 was the General Electric equivalent of the WE VT-1, interchangeable with it.
First made by GE for the US signal Corps after an order from them for 80,000 tubes in January 1918.
The tube is designed for detector, amplifier and oscillator use in heterodyne circuits. The anode is an inverted nickel "cup" 1/4 inch diameter and 5/16ths inch high.

 
Tube prices 1 Tube prices (visible for members only)
Literature Saga of the Vacuumtube, Tyne   page 148, 149, 154
Tube Lore   
 
usa_general_electric_vt11.jpg
VT-11: Ebay photo
Lindsay Shepherd

 
uv~~65.png
VT-11: Fin Stewart
Fin Stewart

 

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