After becoming a professor emeritus in 1992, he presented nearly 200 courses on microwave devices to scientists, engineers and managers. He also authored four textbooks on microwave tube technology, based on the courses he presented. The last of them, “Microwave and Millimeter Wave Vacuum Electronic Devices,” with 900 pages and more than 1,000 color illustrations, was published when he was 88.
Dr. Gilmour received the 2018 IEEE John R. Pierce Award for Excellence in Vacuum Electronics, considered the lifetime achievement award in the field.
He had a passion for building and fixing, which led to extensive renovations of his homes in Clarence and Silver Lake in Wyoming County, and the design of his home in Alligator Lake, Fla.