Has anyone tried these?

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Portertown

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ECF Veteran
Oct 20, 2013
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Greenville, NC, USA
If you already have silver coated brass contacts, you may want to contact your local jewelry store about adding a Rhodium coating to them.
The local jewelry store in my area adds Rhodium coatings to silver rings, bracelets, etc to keep them from tarnishing. I talked to him about adding the Rhodium to two sets of contacts for me and he said he could do it for around twenty dollars total. The Rhodium coating needs to be just thick enough to stop the oxidation, not too thick as it does lower the conductivity.

I have not cleaned the factory Rhodium over silver coated brass contacts in my two Poldiacs in two months and the voltage drop tests has not shown any increases in voltage drop. So the Rhodium must be doing it's job of keeping my contacts clean.
 
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