A Swiss company called Lenco used to make a turntable with a constantly variable speed abtained with a conical shaft, driving an intermediate rubber coaated idler wheel that turned a second conical shaft, such that the position of the idler wheel could me moved to achieve constant variable speed. Bogen - think educational equipment - imported there turntables for many years, may still. That gives you a place to start. Now granted this won't give you the same fidelity as your $1500 custom made turntable, but 78 RPM records were not known for their fidelity. A local DJ who does a historical music show, has an unofficial rating of these records by the number of pennies or dimes he has to place on the tone arm to get it to stop skipping over the reecord! Dave
|