Hey all - I got a project Bally Black Jack SS a couple months ago and got up and running 100% this past weekend after hours and hours of re-pinning connectors and replacing transistors on the SDB and Lamp boards. I'll be tearing down the topside of the playfield and entering the cleaning phase this weekend.
This SS pre-dates sound boards so it's chime-based. Chimes work fine and they sound ok, but they're tarnished and look pretty ugly. I discovered ultrasonic cleaners and tumblers a few months ago when I cleaned up my project Mata Hari and the screws, rebound gates, drop target assemblies, etc. came out great. My question here is - can I tumble the chimes clean without affecting the tone? Walnut media and/or corncob media? Or should I just try to clean them up by hand?
Thanx...