Voltmeter [Cardew's Voltmeter]

Maker and role
Drake and Gorham Limited, Manufacturer
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Object detail

Accession number
1969.231.1
Maker
Drake and Gorham Limited
Description
Cardew Voltmeter, No.148, made by Drake and Gorham, London. The voltmeter is round with a white glass covered dial calibrated from 0 ~ 120. Voltmeter has a long cylindrical shaft with an attachment clip at its base. Voltmeter is covered in a metal shell that is bronze in colour. A long black pointer pivots at the centre for direct read-outs. To measure 130 volts. Total current may be kept on continuously. Resistance 361.05 ohms at 135.6. Meter has a small museum tag reading 'Cardew Voltmeter. To measure 130 Volts total. Current may be kept on consistently. Resistance 361.05. OHMS. At 135.6'
Marks
Cardew's Voltmeter
Patent
Drake & Gorham
London Printed
Cardew's Voltmeter/ Patent/ No. 148/ Drake & Gorham/ London Printed
IV Engraved
Cardew's Voltmeter/ Patent/ No. 148/ Drake & Gorham/ London Printed
IV Engraved
Cardew's Voltmeter/ Patent/ No. 148/ Drake & Gorham/ London Printed
IV Engraved
Media/Materials
Processed Material/Metal
Processed Material/Glass
Credit Line
Drake and Gorham Limited. Voltmeter [Cardew's Voltmeter], 1969.231.1. The Museum of Transport and Technology (MOTAT).

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