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Marconi Crystal Receiver Type 31C, by Marconi Company, London, 1910

Inventory Number 21573

Acknowledgement: © History of Science Museum, University of Oxford, inv.21573

Item type
Object
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
"TYPE 31C / MARCONI'S WIRELESS / TELEGRAPH CO. LTD. / NO 222089 LONDON" etched on ebonite surface.
Object type
Radio communication
Dimensions
Height: 230mm Width: 340mm Depth: 195mm Weight: 4.8kg
Inventory No
21573
Accession Number
2004-9/95

Description

Marconi Crystal Receiver Type 31C, with nickel-plated fittings on ebonite surface in mahogany? case. With on/off switches for two crystals, battery and jigger, terminals for battery, telephone and assorted parts, and sliding switches for two crystals. With sliding control at side for control of primary jigger winding. Crystal detectors missing. Previously catalogued and associated with Marconi Aerial Tuning Inductance Coil (Inv. Num. 69155).

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