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Subject: Re: Copper Clad Board
From:
alienrelics@...
Date:
2016-11-24
All that the hydrogen peroxide is giving to the mix is oxygen. So you can bubble the etchant rather than adding more hydrogen peroxide.
http://home.exetel.com.au/adam.seychell/PCB/etching_CuCl/index.html
Steve Greenfield AE7HD