It was really wierd watching the Auto-Cue system working on vinyl records...
For the un-initiated, you placed a record on the platter, put the stylus on the beginning and pressed Auto-cue. The platter started and continued until the cue system detected a notable sound (sometimes a scratch, pop or crackle, but usually the first bit of the music), at this point the motor powered down and went into a slow reverse, until it got back to just infront of that detected sound, and stopped - meaning that when you hit "start" it was more or less where you needed it to be.
The only other snag with it was that some heavier records would take longer to get up to speed than others so the deck didnt have time to get upto speed from the "just infront of sound" sometimes, so you occasionally got a drag start sssssllluur!.
Ghosts in the machine...