Anyone willing to etch some PCBs?

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  1. - 29th July 2009, 08:27 #16
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    Quote Originally Posted by Byte_Butcher View Post
    The orange/brown stuff is ferric chloride.
    The greenish blue stuff is probably ammonium persulfate.
    Nitric Acid goes blue after first use too.
    You might think good thoughts about printing your Positive in mirror image so you can put the toner side against the copper, so the .010 or .020 thickness of the plastic overlay does not diffuse light onto your traces.
    Last edited by Archangel; - 29th July 2009 at 08:38.
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