Homebrew PCBs

I just added a text and MHT version to our files section: Seychell_Cupric Chloride

John


  ----- Original Message ----- 
  From: Aaron 
  To: Homebrew_PCBs@yahoogroups.com 
  Sent: Tuesday, May 08, 2012 3:25 PM
  Subject: [Homebrew_PCBs] Re: Long-Term CuCl2 setup


    
  > Whether the copper is oxidized to Cu^+2 can be determined 
  > by color. I just bubble air until all traces of brown/mud 
  > are gone as per Seychell's instructions.

  He had a great web page describing the process but it seems to be down. Does anyone have an archived copy of the page?

  http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/index.html

  It covered how to determine optimum pH, specific gravity, temperature, etc and was probably the most thorough coverage I have seen given to the topic. 

  Aaron



  

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