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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Use a rubber eraser, it will not damage the gold plating

Magic Eraser

Vodka on a cotton ball/swab! Also recommended by A.J. Van den Hul for cleaning styli.

If the tubes are brand-new in-the-box leave 'em alone! No need to be so neurotic!