Cleaning tube pins

@ daveyf

I use Isopropyl alcohol.

Dampen a clean white cotton cloth with Isopropyl alcohol. (Like a piece of an old white T shirt). Wipe down the pins good with the dampened alcohol clean cloth. Continue cleaning the pins with a new clean part of the dampened alcohol cloth until there is no longer any residue on the white cloth. Wipe dry.

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@OP,
Been doing it for at least twenty years.
Alcohol quickly evaporates. What you are wiping dry is any water content the alcohol didn’t evaporate with it.

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