[rfeenstra]

Thanks Russ. That is about as clean as it gets with a damp rag. Even tried a bit of alcohol around the outer part but it didn't help. It may have to stay as is.

As far as the candohm is concerned only one section that ties to ground (end section) is open. Have you ever trusted the rest of the sections to hold up under actual use, or is it best to replace all sections with a WW resistor? If I were to do that, I'd probably install a terminal strip. Sure wouldn't look original, but one must do what one must do to make things work.