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History of Science Museum

Small Ohmmeter, by Cambridge & Paul Instrument Company, Cambridge and London, Early 1920s

Inventory Number 93933


Acknowledgement: © History of Science Museum, University of Oxford, inv.93933

Item type
Object
Primary inscriptions
"OHMS AT 20°C / THE CAMBRIDGE AND PAUL / INSTRUMENT COY. LTD. ENGLAND" printed on upper exterior surface.
Dimensions
Height: 109mm Width: 107mm Depth: 106mm Weight: 792g
Inventory No
93933

Description

Small Ohmmeter, with ebonite upper surface upon square teak case. With two lacquered copper alloy and copper terminals and circular bakelite dial (scale 0-10 ohms). This is a simple instrument that measures electrical resistance. Exterior surface of case possibly slightly damaged, or badly manufactured.