2. analog
  3. 1353110162

High quality AC turntable motor

I am looking for a high grade AC motor for my Townshend Elite Rock turntable.
The current motor is specified to run at 110v 250rpm. I reckon that it's got very little torque. I have considered the phillips and the premotec - but they appear to offer no real alternative so far as specs are concerned with what I have.

I have seen a couple of motors on the RS Online website by the likes of Berger, and Crouzet. The Crouzet motor intrigues due to it's high torque rating. my concern is whether or not it is noisy, and vibrates a lot.

Does anyone have experience with these motors? or does anyone have any suitable suggestions?

I intend to try out a few different power supplies on the deck at some point.
lohanimal

Showing 2 responses by larryi

larryi
4,270 posts
 
If the controller does not split phase (relies on a capacitor in the motor to split phase), then I would expect that one is better off moving the belt on a pulley rather than electrically switching speed.

The motor controller for the Basis turntable does properly split phase in the controller, sending two separate power lines to the motor. The motor has to be modified in order to use the controller (one cannot just plug the motor into the speed controller).

larryi
4,270 posts
 
Lewm,

What I was getting at was that ac controllers that change speed between 45 and 33.3 without splitting the phase cannot really do a good job. The capacitor that then does the phase split/rotation, cannot be of the right value to do the job correctly for two different frequencies. That is why I think that plug-in motor controllers that electronically switch speed are of dubious value. The right way is for the controller to do the splitting optimally for whichever speed, in which case, there are, in effect, two separate supply lines leading from the controller to the motor (the capacitor is then removed from the motor).
More to discover