DIY Valve Tester Build, Re-Build - Part 1.

Описание к видео DIY Valve Tester Build, Re-Build - Part 1.

I built this basic valve tester about 14 years ago, it was a basic emission tester. I'm going to re-build it with a bit more functionality. The ability to test gm, as well as a beefed up current capability and a better high voltage anode supply using a valve regulated power supply.

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