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ID = 28443
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 CG-886
Similar Tubes
Other base:
  CG-890 ; G_Pliotron ; VT-11
First year 1918 ?? Saga of the Vacuum Tube, Tyne 148

Base SPECIAL TUBEBASE in general Sidecontact.
Was used by Military and/or Government
Filament Vf 3.9 Volts / If 1.1 Ampere / Direct / Battery =

This tube was originally fitted with the standard US Navy 3 pin base, made of a composition material and with the anode from the base side connection. The tube was given the type number VT-11 by the US Signal Corps but used the four pin Shaw base. The Navy later adopted the Shaw four pin base and redesignated the tube CG890. The anode is a small inverted "cup" and is 5 mil. nickel, about 8 mm diameter and 10 mm high.

Dimensions (WHD)
incl. pins / tip
x x 45 mm / x x 1.77 inch
Information source Saga of the Vacuum Tube, Tyne   Page 148
Tube Lore (II)   p. 181

cg886_socket.png CG-886
Anonymous 544 Collector

Collection of

Collection of a member from D


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