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What solution to clean silver and gold contacts?

Hello!

          I am looking for a product to use to clean contacts in my audio system. Contacts are mostly gold plated, but some of them are pure silver on pure silver.
         I do not want anything that leaves any kind of residue / contact enhancement product. I read on forums that some members claim these products improve the sound at first, but later degrade it. So in the end, they removed all of the contact enhancement product from the actual contact.
         Right now I am mostly leaning towards using pure ethanol alcohol, as I think all of it would evaporate.
         Thanks in advance for all of your advices.
audiobb

Showing 1 response by terry9

terry9
2,354 posts
 
@ljgerens 

A question for you, please. I remove silver tarnish by putting the silver in electrical contact with aluminum foil, and immerse both in a hot solution of baking soda. The sulphate ion bonds to the aluminum, leaving the silver intact without pitting. Have I missed something?

Also, I understand that sulphates can be present on the fingers. Is this not correct?

Thanks!
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