8" dial, 16 1/2" scale, D.C. voltmeter with moving

8" dial, 16 1/2" scale, D.C. Voltmeter with moving coil pivoted along one side and moving in annular air gap, giving long scale. (Demonstration). (Modern)

Details

Category:
Electricity Supply
Object Number:
1931-688
Materials:
chromium plated steel, enamelled metal case, glass, metal (unidentified), plastic (tape over coil), steel, textile covered electrical wiring
credit:
Record Electrical Co.
status:
Permanent collection

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