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| Board etching in Ferric Chloride |
Showing posts with label PCB. Show all posts
Showing posts with label PCB. Show all posts
Wednesday, January 26, 2022
Adventures in Photoetching - or - Making Old School PCBs for Fun
At the first of the year I published an article on two new versions of the EHX Big Muff Pi effects pedal I'd completed. One was built on a home-etched board a friend had sent me using a pattern from the Effects Layouts blog. At the time I mentioned that I had done photo-etching in the past starting when I was in graduate school (getting a Ph.D. in chemistry - so applying chemistry to something guitar pedals, electronics, and music is "really cool" in my book!). Since I had some experience in the area (most recently around four years ago when I etched not one, but two sets of double-sided detail parts for 1/100th scale T-72 tanks), I decided it was time to dust off the old equipment and get cracking. This time I decided I'd try and take advantage of a few options unique to PCB etching (since I'm only doing single-sided boards!).
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