OK, here's yet another riddle about phonograph records (actually more of a puzzle than a riddle). I have a classical record album consisting of six records. It is recorded in the drop-automatic sequence, so it can be played on a record changer by loading the records, starting the changer, letting the first set of sides play, turning the stack over, starting the changer again, and letting the second set of sides play.
This album plays perfectly on my Garrard SL-55. But when I try to play this album on my Magnavox/Collaro record changer, I have to use the changer in an unusual way to play the entire album. It plays the album correctly for the first set of sides, but when I turn the stack over, the arm sets down one inch outside the rim of the first record in the inverted stack.
To get it to play the series of second sides correctly, I have to load the first record of the second-side series separately, start the changer, and then load the remaining records while that first record is playing.