This article is a bit far away from typewriters. Some of my more endearing customers bring interesting things for me to repair. I cannot turn them away, especially when it is an advertising gizmo that lights up and rotates!
The rotating beer sign was a bit unbalanced and it turns out the rotation motor gears were stripped. Fortunately, there is a huge fan base on the interwebs for beer signs. HUGE! I found the direct replacement for the drive motor so it was all about getting the turn table balanced then turning consistently.
It also needed a grommet on the bottom of the sign to keep it from wobbling. Rotates nice! Here is a link to a short video: