Moving-coil meter calibrated as an insulation tester and voltmeter

Made:
1939-1945
maker:
Hartmann and Braun

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Moving-coil meter calibrated as an insulation tester and voltmeter, with battery compartment in base and complete with two test leads, by Hartmann and Braun, serial no. 1825365, dating from 1939-1945

Details

Category:
Electricity and Magnetism
Object Number:
1984-338
credit:
Bagley, J.A.