Browse Items (4 total)

A photograph of a Weston Voltmeter from the collection, used to measure electrical voltage

A photograph of an American Weston Voltmeter, used to measure electrical voltage. It was used by the American Navy until October 31, 1968

Photograph of a Bach-Simpson Voltmeter, used in measuring electrical voltage. Made after the Second World War, likely in London, Ontario

A photograph of a Bach Simpson Voltmeter, used to measure electrical voltage