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ID = 36206
United States of America (USA)
Brand: General Electric Co. (GE); Bridgeport CT, Syracuse NY
Tube type:  Double Tetrode 
Identical to GL-5674 = 5674

Base 6-Pin-Base U6A, old, USA Top contact with a cap.
Was used by Technology / Measurement
Filament Vf 3.8 Volts / If 0.09 Ampere / Direct / Battery =

Dual balanced amplifier: single cathode and space charge grid, dual control grid and anode; thoriated tungsten filament cathode. The tube was intended as electrometer amplifier working in a Wheatstone bridge circuit, given in the data sheet.

Information source - - Manufacturers Literature   
  GL-5674: Manufacturer's Literature
Emilio Ciardiello
GL-5674: Private collection
Emilio Ciardiello

More ...
GL-5674: Manufacturer's Literature
Emilio Ciardiello

GL-5674: Manufacturer's Literature
Emilio Ciardiello

More ...

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