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Carborundum Detector, Early 20th Century

Inventory Number 90595

Acknowledgement: © History of Science Museum, University of Oxford, inv.90595

Item type
Object
Provenance
Presented by the Marconi Corporation.
Primary inscriptions
None
Physical material
Ebonite
nickel.
Object type
Radio communication
Dimensions
Height: 45mm Width: 62mm Depth: 50mm
Inventory No
90595
Accession Number
2004-9/496

Description

Carborundum Detector, on ebonite base. With nickel-plated components including switch and two terminals. Previously catalogued with Onwood's Patent Ohmmeter (Inv. Num. 95036), Three-Position Switch (Inv. Num. 40839), 'Marconi' Ammeter (Inv. Num. 62660), Small Coupled Two-Way Switch (Inv. Num. 61022).

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