I could have sworn there was a YT video about this one, but I can't find it.
From what I can see, after placing the record on the turntable, you put the central post over the spindle, set the tabs for the first and last grooves, start the machine, and set the needle down. When it hits the tab at the last groove, a pin engages a spiral groove inside the post. This lifts the reproducer up, which then slides down to hit the other tab, disengaging the spiral groove and setting the reproducer back down at the beginning again. Probably not as brutal on records as some other repeaters.
- Bill