For Amusement Only Em And Bingo Pinball Podcast

The ball gate switch is a very important switch, indeed!  It tells the bingo with a time tree that it should throw a trip relay based on the position of the timer unit.  Without the trips tripping, the timer will no longer advance, and you will have crazy gameplay issues, including issues with registering replays, locking you out of various timetree-driven features, etc.