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Homemade Capacitor Spot welder

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Published on Apr 26, 2009

More info and the schematic at http://frikkieg.blogspot.com CHECK OUT VERSION 2 solid state dual pulse welder http://www.youtube.com/watch?v=hxWo8k...

This started when both the batteries of my drill died and not willing to pay the outrages amounts for new batteries I started to look around for a better alternative. I realized that the guys that were building their $100 welder was on the right track but some did not really understood the math involved to figure out the current and discharge times of these machines.Inspired by these guys at endless-sphere.com I started from scratch and designed this welder because I could not find any good schematics on the internet. It took me 3 months and here it is::::::

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