AVO valve testers, part 2 - September 2022 - Silicon Chip Online
My article last month covered the history of AVO valve testers and described the seven different types that were made over the years and how they worked. I also have some general advice about repairing and calibrating these instruments. by Ian Batty
United Kingdom Jerry Aldrich Euan Mckenzie British Vintage Wireless Society Australia United Kingdom Vintage Radio Repair Restoration Forum Tester Restorations
Source: siliconchip.com.au