De-oxit is helpful but something else needs to contact the leads to remove oxides and such.
Laying down an IC on edge so that all the pins on one side can be polished with a piece of superfine grit wet-sanding paper is one way.
An artists eraser , the type that looks like a pencil , is another way to "polish " the IC pins . It's just more work.
-- Scott Frye
Audio-fixation.net
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