I've got some old cartoon reels and a Bell & Howell 1552 projector to run them in. It's sort of a cantankerous auto-loader, but once the film's threaded up, it runs pretty good. I remember the old Singer projectors the school had. The picture would jump and flip constantly in those things!
One of the most laughable things I remember are the films that didn't have a soundtrack, but instead had a record or tape to go with them. You'd get the 5-4-3-2-1 countdown at the beginning to get ready to press "play". Invaribly, halfway through the film, the sound would get out of sync, and it would look totally screwy with the people's lips not matching the sound. Most of these however were narrated films, where it didn't matter if the picture got a little off though.
...speaking of old school house AV gear, any of you all have the old Califone record players in your classrooms? I've got an old model 10 here. It was one like I had in school. Grey case, and a wire mesh speaker grill out front. The knobs are on top the speaker grill, and a big 6x9 speaker is in there. I though those were the best sounding turntables when I was young...they really aren't that bad, even though they won't hold a candle to a good HiFi system! Newer stereo Califone turntables were blue, and the speakers were the cover...they attached to the top to cover the turntable portion.