Uploaded December 2025 | Updated September 2026, 2 weeks ago

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Another Show And Tell movie that I have recorded few years ago and only now I had the time to edit it.
This simple build is to protect 220V circuits that test. If there is a short in the board, this simple design will save it from shorting out.

This is for educational purpose only. High voltage is dangers and only certified people should handle it.

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