The Stovebolt Site Forums The Shop Area The Electrical Bay The Radio Bench Excellent, another radio to play with

Maybe try Flitz polish on the brass? Will take some work to get down into the threads, but it works well to polish brass (among other things). I first used it when I was working as an electronics tech in grad school, to polish the internals (brass tubing) of an electron beam column in what would now be considered an antique scanning electron beam microscope. It was the only thing that allowed us to keep the internal structure clean enough to keep the beam focused, FWIW. Basically removes oxidation and leaves no significant residue if wiped off thoroughly. We used isopropyl alcohol for that. Nothing very exotic...