It’s not like etching with hydrochloric acid and peroxide is anything new, really; it was just something new to him. But is it even possible these days to post something and not find out just ...

Here’s two hacks to etch your own boards ... tell us about [Tom]’s etching process that is like wiping the copper off the board. He used Muratic (Hydrochloric) acid and Hydrogen Peroxide ...