Homebrew PCBs

On Tue, 06 Sep 2005 08:52:20 +0200, Phil <phil1960us@...> wrote:

> By the way, I just added a new heater to my tank and did 6 pcbs.  I
> got 5 minute etches on 1 oz, ds boards (2 at a time) with a not so
> fresh solution of AP at 120 F.  not bad at all.


yea, but still, what do you do with it when the AP is spent?

ST