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History of Science Museum

Recording Voltmeter, by Elliott Brothers (London) Ltd., Early 20th Century

Inventory Number 12832


Acknowledgement: © History of Science Museum, University of Oxford, inv.12832

Item type
Object
Provenance
Presented by the Marconi Corporation in 2003.
Primary inscriptions
'ELLIOTT BROTHERS (LONDON) LTD. / VOLTMETER / INST. NO. 312505 / SERIES REST. FOR 220 & 440 / P. T. RATIO / SPEED OF CHART / RANGE 180 - 260 VOLTS / TOTAL REST. 3700 w / PERIODICITY 50~ / 1" PER HOUR / PER MINUTE'
Object type
Electronic instrument
Dimensions
Height: 505mm Width: 220mm Depth: 215mm Weight: 13.05kg
Inventory No
12832
Accession Number
2003-11

Description

Recording voltmeter in fitted wooden case with fitted paper chart. The outer case has a large hinged lid with glass window, a leather handle, four rubber feet, a metal latch and three terminals. Inside, the voltmeter has an installed paper chart.