Siemens electrodynamometer wattmeter (open instrum

Made:
London

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Science Museum Group
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Siemens electrodynamometer wattmeter (open instrument), no. 4916, scale 0-400.

Details

Category:
Electricity Supply
Object Number:
1985-2013
Materials:
copper alloy, enamelled dial, mahogany wood, metal, textile-covered copper wire and zinc (possibly)
type:
wattmeters
credit:
Imperial College of Science & Technology (Dept. of Electrical Engineering)