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History of Science Museum

Main Starter Switch, Early 20th Century

Inventory Number 39443


Acknowledgement: © History of Science Museum, University of Oxford, inv.39443

Item type
Object
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
"VOLTS 24 / .25 K.W. / NO 45963" on brass plaque on upper surface.
Object type
Radio communication
Dimensions
Height: 155mm Width: 150mm Depth: 180mm
Inventory No
39443
Accession Number
2004-9/179

Description

Main Starter Switch (24 Volts, 0.25 kW), in black-painted lattice iron casing with progressive switch with black-painted handle and copper points. Including variable A.C. generator control with celluloid? label and bakelite? dial. With four brass double-screw terminals marked "A.G.F.", "ARM", "MAIN", "FIELD". Previously catalogued with similar Main Starter Switch (Inv. Num. 92107).