How can I clean the contacts on an old organ?

Our unit in college found a free organ on craigslist. It mostly works, except for a few keys that are iffy when played. Meaning, some play and others do not all the time. We've taken it apart, and the contacts are a spring and bar type of connection. I'm wondering how to make them work like new.

Bigev (author) 8 years ago
I'd choose both, but I can't so it goes to seandogue.
orksecurity8 years ago
I'd try emery paper -- a very, very fine sandpaper, usually on a mylar backing -- to polish the contact areas. You may also need to bend the spring a bit. Have fun -- you can now claim that you are finally Well Organized!
Bigev (author)  orksecurity8 years ago
"Organized" *rolls eyes and sighes