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Lord Kelvin's Multicellular Voltmeter, by Kelvin Bottomley & Baird Ltd, Britain, 1920s

Inventory Number 47607

Acknowledgement: © History of Science Museum, University of Oxford, inv.47607

Item type
Object
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
"LORD KELVIN'S / MULTICELLULAR / VOLT METER NO 16392 / KELVIN BOTTOMLEY & BAIRD, LTD. / LATE / KELVIN & JAS. WHITE LTD. / GLASGOW & LONDON" printed on brass label upon exterior surface of upper cylinder. "KELVIN BOTTOMLEY & BAIRD LTD. / GLASGOW & LONDON / CIRCUIT MAXIMUM 600 VOLTS / MULTIPLIER NO 16169 / VOLTMETER" printed on vertical surface of multiplier.
Object type
Radio communication
Dimensions
Height: 365mm Width: 265mm Depth: 300mm
Inventory No
47607
Accession Number
2004-9/403

Description

Lord Kelvin's Multicellular Voltmeter, with crinkle-black finish upon steel tripod base. In teak carrying case with interior baize-lining, and iron handle. With half-moon, glass display, non-linear scale for Volts (scale 0-120), and vertically mounted voltmeter multiplier on ebonite surface with Bakelite knobs. With Bakelite dials marked Zero and Clamp, on upper surface. With copper alloy maker's plaque, and spirit level.

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