[Stephen] often finds the need to make his own PCBs at home, and when he got the urge to do some etching recently ... the ability to strip copper from a PCB. Now, we don’t necessarily recommend ...

For a lot of reasons, home etching of PCBs is somewhat of a dying art. The main reason is the rise of quick-turn PCB fabrication services, of course; when you can send your Gerbers off and receive ...