Laboratory standard a.c. and d.c. (electrodynamome

Made:
1953 in Enfield

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Laboratory standard a.c. and d.c. (electrodynamometer) voltmeter with 12 inch scale, model S.92 No. W91609, by Sangamo Weston Ltd., Enfield, Middlesex, England. Switched 75V, 100V and 300V ranges accurate to 0.1% of full scale. Fitted with levelling feet and built-in spirit level and mercury thermometer. With connecting leads, and printed calibration certificate dated 10 March 1953

Details

Category:
Electricity and Magnetism
Object Number:
1989-1180
credit:
Imperial College of Science, Technology & Medicine

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