Homebrew PCBs

On Fri, 24 Feb 2006 17:07:36 +0100, alan00463 <alan00463@...> wrote:

> No need to buy a fancy cleaner.    I used to clean pennies in a
>
> mixture of vinegar and salt.    The proportions make little
>
> difference.   The solution strips off all the copper oxide almost
>
> instantly.    Any kind of vinegar.   Of course, you'll have to rinse
>
> the board in water right after doing this.
>
> Alan


Ok, what i don't get here, why are you cleaning pennies? I mean, it  
doesn't really matter if they are dirty when you spend them, right?
What am i missing here?

ST