worn edge fingers
cclist at sydex.com
Tue Apr 13 16:51:28 CDT 2010
On 13 Apr 2010 at 14:14, David Griffith wrote:
> I was examining some old Vectrex cartridges and I noticed on one that
> the gold on the edge fingers has worn down to the copper below.
> What's the proper way to rehab things like this? Wipe with some
> solder and blow off the excess with an air compressor?
Most gold is plated over a nickel flash over copper (pure gold
doesn't adhere well to copper for some reason). If I wanted to be
near-original, I'd plate the edge contacts with electroless nickel,
then perhaps finish up with a gold brush plate. Not cheap if you
don't have a lot to do.
Alternatively, consider electroless tin plate, such as Tinnit.
Inexpensive and should be pretty durable.
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