Homebrew PCBs

DJ  Thanks for the link and advice on the HCL ... It looks as if 
Adams' etch times are 300 to 600 seconds
using an optimal CuCl solution. My etch time was 900 seconds+ with sub 
optimal CuCl. Even if I get the
etch times down to 450 seconds using CuCl, that is still MUCH slower 
than fresh HCL/H2O2 of 90 seconds.
Unless I find something bad with the fast etch times, I think I will 
stay with the fresh solution.
I etch less than 30 small 2x2 PCBs a year so it is not worth the hassle 
of maintaining the CuCl method.
(I noticed I failed to sign the beginning post to this thread!)
Jim KI6MZ

On 8/30/2010 9:54 PM, DJ Delorie wrote:
> The emerald CuCl solution needs some TLC over time to remain "fast".
> Adding HCl is one option.  See:
>
>     http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/
>
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