The standard go-to solution is ferric chloride. It isn’t too tricky to ... although you can get it in dry form. Another common etchant is ammonium or sodium persulphate. There’s also a variety ...

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 ...