These times it seems like everybody does his PCBs at home and posts about his process. So do I. I bought me a used face tanner in order to use it as UV lamp for my PCBs. There is also nothing new to what many others did before. The face tanner also had a time switch that (I thought) would make it a perfect UV lamp without the need of modifications. But the time steps were too coarse. So I modified it to have a finer time control. This is what this post is about.
Face tanner to PCB UV lamp
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