Homebrew PCBs

Why not buy a chinese scale?

0.01g resolution 300g max:
<http://www.dealextreme.com/details.dx/sku.35758>
I didn't select the cheapest 0.01g scale because this one has 300g max
instead of the usual 100g.

0.001g resolution 20g max:
<http://www.dealextreme.com/details.dx/sku.10515>
Probably overkill for this application.



Please note that Thiourea is carcinogenic and needs to be handled properly.

ST




On Wed, Jul 21, 2010 at 6:41 PM, Alessio Sangalli <alesan@...> wrote:

> Where do you get the chemicals? Also, do you have a very precise scale?
> My kitchen scale can theoretically meausure with the precision of one
> gram but how can I trust it for such small quantities?
>
> Do you have pictures of the process?
>
> bye
> as
>
>