Homebrew PCBs

2008/11/5 Roland F. Harriston <rolohar@...>:
> Did you preheat the copper clad??
> Very important.

i never did, but then i never had much success, i think this may be a
clue.........

but.... if you clean it and then heat it, does it not tarnish/oxidize
before you hit it with the paper, are we preheating it for just
seconds or minutes, and by what method?