General Radio

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1540 Strobolume, a professional grade stroboscope produced by General Radio
Close-up view of the 1540 Strobolume control box

General Radio Company (later, GenRad) was a broad-line manufacturer of electronic test equipment. Started in Cambridge, Massachusetts in 1915 by Melville Eastham, the company moved to West Concord in the 1950s. There, it became a major player in the automatic test equipment (ATE) business, manufacturing a line of testers for assembled printed circuit boards. It also produced extensive lines of electrical component measuring equipment, sound and vibration measurement and RLC standards.

In 1991, QuadTech, Inc. was founded as spinoff of GenRad's Instrumentation Division. IET Labs, Inc. purchased the GenRad product lines from QuadTech.

Primarily because of its line of ATE equipment, the company was eventually acquired by Teradyne in 2001 and has now been relocated to Teradyne's corporate campus in North Reading, Massachusetts.

The classic GenRad instrument line including RLC standards and decades, Digibridges, LCR meters, megohmmeters, stroboscopes, and sound level meters continues to be manufactured and supported by IET Labs, Inc. in West Roxbury, MA.

Among General Radio's accomplishments over the years have been:

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