Does copper migrate through silver?

The ACME is silver plated directly over the 688 brass, no substrate and 200 microns deep.....The brownish color is sulphur from air polluton and not copper leeching through or oxidation as silver doesn't oxidize at room temperatures.......I have some glorious sounding Switchcraft panel mount IEC connectors from fifteen years ago that have turned almost black with the sulphur.....

Crump, I have two oil refinery less than two miles from me!

Should I do something about the air quality in my apt? I've been concerned about that.

So much for Audiogon's lawyer out of place comment...

Psychianimal, I live in Houston so enough said about air quality as I have gotten to the point I don't trust air I can't see :-) Time for us both to move.....

Well, Lak was here this afternoon and he told me the silver had indeed discolored. We got our outlets in the same Dutch auction last December.

He had a good time listening to my "DJ TT on steroids", too!

I have also seen silver oxidize heavily at room temperature. It can be polished back to shiny though.