Alt-BEAM Archive
Message #06758
To: beam@sgiblab.sgi.com beam@sgiblab.sgi.com
From: Richard Weait crs0274@inforamp.net
Date: Saturday, 16 October 1999 9:50
Subject: Re: PCB etching
>At 10:31 PM 10/15/99 +0000, you wrote:
>
>>Does anybody recommend Radio Shack PCB kits?
>
>. . . is that silence that I hear? . . .
>
> Use ammonium persulphate for etching, rather than ferric chloride.
>The crystals are easier to store, you can 'see' the reaction, and
>judge when it is complete.
>
> Read the label and follow the safety instructions.
>
>Cheers,
>
>Richard.
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