Harmon 4200B Selective Voltmeter - Fix and Repair - Part 2

Continue the repair and troubleshooting journey of the Harmon 4200B Selective Voltmeter in this 27-minute video that explores the operation and fixes various issues with this vintage test equipment. Learn about the history of Harmon Industries, discover the evolution of printed circuit boards, and gain insights into the technical aspects of selective voltmeters. Access the original Harmon 4200A Instruction Manual from 1974 to understand the design principles behind this specialized measurement instrument. Perfect for electronics enthusiasts, repair technicians, and those interested in vintage test equipment restoration.