Calibration and Repair for Bird Wattmeter Elements
Follow these simple, easy steps—and save big money!
by Francis Kelson HL9BK/K2KSY
Some time ago, I received some burned out and well-used Bird and Sierra wattmeter elements. As I looked over the elements, 1 wondered if ii was possible to gain access to the passive and active elements inside for replacement or restoration. At 55 bucks per, I figured it was worth my time and effort to check it out, since 1 had well over a thousand dollars worth laying on the bench in front of me. My investigations paid off handsomely.