Here is an old ham radio operators trick for cleaning wires for soldering that are old and corroded. It is hard to find this technique printed anywhere! I am a ham, N5ITO. Normally, if you strip a wire, and see it is corroded, there is not much you can do to restore it’s shiny new conductive properties. There is scraping and scratching which comes to mind, but you’ll never get it to the solderable slickness it once was long ago. After laboring and fretting over the corroded pieces of wire for a......

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