Homebrew PCBs

On Tue, 06 Apr 2004 14:33:38 -0000, dsv1486 <darrell.vandenberg@...> 
wrote:

> I used some phosphoric acid and 3% hydrogen peroxide to etch some
> boards. I warmed it the a hot water bath and it produced a green
> tint to the solution after etching and did an excellent job. Has
> anyone had experience with this combination???

interesting...

would be interesting to compare it to the hydrocloric and sulphuric 
etchants...

What about fumes? are there any? the clor smell is not especially nice..
what about maintaining it in an etching state?
what happens if there is too much copper and you cool it?


i know it is added in some drink, like cola..., what does it cost?

ST