Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,526 pages of information and 233,954 images on early companies, their products and the people who designed and built them.

Datron Electronics

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of Norwich.

1974 Launched a multi-function digital voltmeter.[1]

See Also


Sources of Information

  1. The Engineer 1974/09/05