A Finishing brush with stiff metal bristles for some post ... All we need to do is to solder a scrap wire to a corner of the PCB clad, and fasten it to an ideally flat piece of scrap wood using ...
He’s taken a piece of copper-clad PCB, and formed it to create a nice circular copper donut. This allows him to make a ring of LEDs in parallel that will slide nicely over the soldering iron and ...
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