Sync motors


I was at a local thrift store the other day, and noticed a old turntable,
that had a synchronous motor installed. The motor is huge, (approx. 4" x
4"), and open framed. I didn't buy this, but am now reconsidering. Is this a
good idea? Would it be better/worse than a teletype motor?  How come I
haven't seen this kind of motor mentioned here before?

Gene lambert