Experimental Watt hour meter

Made:
1882
Experimental Watt hour meter

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Experimental Watt hour meter
Science Museum Group
© The Board of Trustees of the Science Museum

Experimental Watt hour meter, measures by gain of electrically controlled clock, 1882

Details

Category:
Electricity Supply
Object Number:
1909-28
type:
meter
credit:
Ayrton, H.