cleaning stop tab contacts

[jwl5151]

What is best way to clean the contacts on the stop tabs. The organ I just got was played by an elderly woman who the choir director never used the stops for
the Choir manual. Some of them do not make a good contact. What product should I use.

[edkennedy]

I would recommend Deoxit F5 cleaner. It's plastic safe and will work on both contacts and controls.
How I use it for contacts; I spray some on an index or business card, slide the card between the open contacts, close the contacts and slide the card in and out. The tarnish goes on the card, and the contacts get clean.