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NRC 538 IONIZATION GAUGE TUBE
Model: 1991A1 Compact (Officer)
Whether displayed on its own or as part of a larger military collection
Darkened with age
manufactured by Doolittle Radio Inc
WWII U.S. Army Signal Corps BC-771 Frequency Meter Cotton NRC 538 IONIZATION GAUGE TUBEWWII U. S. Army Signal Corps BC 771 Frequency Meter General Electric Original WWII U. S. Army Signal Corps BC 771 Frequency Meter manufactured by General Electric, Schenectady, New York under 1942 contract. Used for precision frequency measurement, calibration, and maintenance of military radio and radar systems. This example retains its original front panel, controls, data plate, and a remarkably complete internal chassis with original tubes,
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