Browse Items (14 total)

A photograph of a HAMMARLUND SP600 shortwave radio unit from the collection

A photograph of a Weston DC Ammeter from the collection, used to measure Amperes (a unit of electrical current)

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