[excellent advice, btw - thanks!]
but this one I was wondering about, and I like your technique:
Ethan Dicks wrote:
...
The other issue that comes up is backplane oxidation.
What has done
wonders for me in the past is to take manila folders, cut them into
strips the width of the card fingers, fold into a 2-thickness layer,
then wet down with 1,2-propanol (isopropyl) and insert/remove a few
times. You will probably see dark grey streaks on the paper the first
couple of times you do it.
(I owe you a few pints!)
-brad