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Re: [Homebrew_PCBs] Re: trying to do the right thing

2013-03-11 by Leon Heller

On 10/03/2013 21:20, Rick Sparber wrote:
> Leon,
>
> So is there a % concentration I should look for?

90% should be OK.

Of course, you can do the same by bubbling air through the etchant.

Leon
-- 
Leon Heller
G1HSM

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