Skip to content
History of Science Museum

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

Inventory Number 56269


Acknowledgement: © History of Science Museum, University of Oxford, inv.56269

Item type
Object
Primary inscriptions
"No L-2655 / OHMS AT 20°C / THE CAMBRIDGE AND PAUL / INSTRUMENT CO. LTD. ENGLAND" printed on upper exterior surface.
Dimensions
Height: 275mm Width: 106mm Depth: 106mm Weight: 1.879kg
Inventory No
56269

Description

Pair with 96442 (adjacent serial numbers). Ohmmeter, with ebonite upper surface upon rectangular teak? case. With two lacquered copper alloy and copper terminals upon upper exterior surface, both badly corroded. With row of three circular bakelite dials (scales 0-10 ohms, x0.1, x1, x10 respectively). This is an instrument that measures electrical resistance.