[volt-nuts] Removal of tinning from copper wire

[J. Forster]

Asked and some answers on Google:

http://www.finishing.com/319/63.shtml

-John

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> ISTR from many years in my past that Copper Sulphate and Salt can be used
> an etchant to remove tin and other plating from copper.   Does someone
> know the relevant quantities to use to make up about 100ml of etchant?
>
> Relevance to this list is that I have some gold flashed electrolytic
> copper spades, and a suitable four core plus guard cable, but want to
> strip the tinning off the wire to make low thermal EMF leads.
>
> I have crimp tools and also have a small amount of Sn/Cd solder I found in
> an old Marconi RF meter.  Which would be the better to use to make the
> connection?
>
> PS Why do the interesting discussions about Solartron 7081 meters happen
> while I'm on holiday and have suspended my subscription?
>
> PPS How were those leakage currents in the errant 7081 measured?   If you
> reply to the list about this please start a new thread.
>
> Thanks
> Dave
>
>
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