In this video, I wanted to provide some information on a DIY power supply I had built some time ago. During the making I discovered that some of the electrolytic capacitors had brown and black gunk all-over. I changed the video to cover the investigation and repair attempts which turned out to be unnecessary as the gunk turned out to be some kind of spilled glue. However, I discovered that the power supply PCB I first wanted to use as a replacement had some real failed capacitors.

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