[volt-nuts] Source for spade lugs?
rob.klein at smalldesign.nl
Sat Sep 11 19:08:21 UTC 2010
Just found this:
Op 11-9-2010 17:20, Alan Scrimgeour schreef:
> Yes, I tried a mix for chemically stripping tin and lead from copper.
> I think it also removed the inter-metallic layer between them, which
> is important, judging by the bright copper colour, but that's a guess.
> I can't find the details now, but if you Google enough you'll probably
> find the details at a site specialising in advising members of the
> metal plating industry. I think it was a mixture of water, copper
> sulphate and sulphuric acid (which I had to hand) and used at about
> 80C. There were some other formulations but they sounded more complex
> or expensive and commercial products are available if cost is no
> object. I haven't checked the result for thermally generated voltage
> against the same lugs with the plating thoroughly sanded off, but they
> looked the right colour.
> ----- Original Message ----- From: "Rob Klein" <rob.klein at smalldesign.nl>
> To: "Discussion of precise voltage measurement" <volt-nuts at febo.com>
> Sent: Saturday, September 11, 2010 2:23 PM
> Subject: Re: [volt-nuts] Source for spade lugs?
>> Op 4-9-2010 23:48, J. Forster schreef:
>>> Another option would be an electrical supply house, then chemically
>>> the plating.
>> In an exchange of PM's, fellow Volt-Nut Alan Scrimgeour showed me how
>> he had successfully
>> done just that. As far as I've looked, almost all commercially
>> available crimp terminals are
>> tin plated pure copper, although there are a few brass ones about too.
>> - Rob
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