Homebrew PCBs

On Tue, 06 Sep 2005 12:58:12 +0200, Adam Seychell  
<a_seychell@...> wrote:

>
> If the sun is shining outside, then put it in a plastic tray and let it
> evaporate for a few days. Thats what I did.
> Unfortunately you'll have to invest money in a hydrometer if you ever
> want to use CuCl again, otherwise your poking in the dark.
>


You can get a hydrometer for that range in the car parts store.
Simply get the meter for battery acid.
They sell the classic floating hydrometer variety (with hydrometer  
pipette) for a whopping eur1 or so.
There's also the "rotating indicator" version, but it is much less  
accurate.

The resolution isn't as good as with a lab meter, but it's plenty for CuCl.

Since i use H2O2 i don't really use is though...

ST