Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

A while back, Adam Seychell mentioned the following:

>If you decide to make some ammonium persulfate then it doesn't
>require or use dangerous chemicals at all, just boring old ammonium
>sulfate, the stuff for fertilizing your garden.

I haven't had any luck looking through the files or Googling up any
specifics on the process though. If someone could provide details,
I'd certainly appreciate it.

Thanks,
Stan