Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

----- Original Message -----
From: "Stefan Trethan" <stefan_trethan@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Friday, February 24, 2006 4:59 PM
Subject: Re: [Homebrew_PCBs] Re: Board cleaning trials


> On Fri, 24 Feb 2006 17:07:36 +0100, alan00463 <alan00463@...> wrote:
>
>> No need to buy a fancy cleaner. I used to clean pennies in a
>>
>> mixture of vinegar and salt. The proportions make little
>>
>> difference. The solution strips off all the copper oxide almost
>>
>> instantly. Any kind of vinegar. Of course, you'll have to rinse
>>
>> the board in water right after doing this.
>>
>> Alan
>
>
> Ok, what i don't get here, why are you cleaning pennies? I mean, it
> doesn't really matter if they are dirty when you spend them, right?
> What am i missing here?

It's the sort of thing I used to do when I was about 10 years old. At school
we used to rub them with mercury to make them look like half-crowns - 25 x
as much. We got a bus conductor to take one, once. We told him what we'd
done before he gave us our change, he was rather angry.

Leon