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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 4 responses by grbluen2

grbluen2
38 posts
 
I would agree with the others. I have recently upgraded to the Premotec motor from the Hurst, which had entirely too much torque. The Premotec motor runs smoother and generates much lower levels of vibration than the Hurst. The ideal motor would have just enough torque to avoid stalling.
Don
grbluen2
38 posts
 
Palasr,
First of all, thanks for shedding some light on a fairly dimly lit subject. I have recently upgraded to a Premotec 9904 111 31813, which is supposed to be a low noise, low vibration motor. I am happy with the motor, but have struggled with it's optimization. Assuming that I am capable of building a parametric controller as you have described, could you be more specific about the procedure. It seems to me that with the number of adjustments available, and without a suitable procedure, I would still be "taking a shot in the dark".
Thanking you in advance,
Don
Posted at 5:48 AM 28-NOV-2012
grbluen2
38 posts
 
Palasr, I'm sorry for not being clear. I can generate quadrature sinewaves, with the ability to vary the phase and amplitude of the waveforms. My question was, now that I have two waveforms and the ability to vary phase and amplitude, what is the procedure for finding the magic setting. Are you measuring the speed distortions of the platter as a result of some sort of systematic tweaking of the waveforms.
Don

Posted 11:53 AM 28-NOV-2012
grbluen2
38 posts
 
Palasr,
Thanks so very much. I'd hoped I was near the end, but I suppose that I'm just beginning (again) :)
Don
Posted 10: 40 AM 29-Nov-2012
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