Antique electronic instrumentation and vacuum tube tester

Description

Antique electronic instrumentation. These were used in the electronics lab for Sprague electronics and later for Westinghouse controls division. The exception being the Heath Kit tube checker. All were in working order at time of retirement. The pyrometer had corrosion from the last battery left in it, but should not have created an issue. The wattmeter may be the oldest instrument with its first certification listed in 1947.