Dead beat hot wire ammeter

Dead beat hot wire ammeter by Hartmann & Brann.

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Dead beat hot wire ammeter by Hartmann & Brann.
Science Museum Group
© The Board of Trustees of the Science Museum

Dead beat hot wire ammeter by Hartmann & Brann. No.63569. 0.2 amp.

Details

Category:
Electricity Supply
Object Number:
1912-355
type:
ammeter
credit:
Union Electric Co. Ltd.