Quoted from kvan99:Not a bad idea...but find out where that buzzing is coming from, it's not the magnet, you can hear the magnet hum when it's holding the ball, I think the buzz is coming from the diverter behind the sanctum, it maybe getting stuck when it's trying to lock the ball.
See the metal diverter...I bet this is what's getting stuck, you may need to rebuild it.
TS.JPG 265 KB
that looks more like a "The Sadow"