Precision Motor Controller

I am pretty sure that your Micro uses a DC servo motor. The controllers you mention such as the VPI are for AC synchronous motors.

U need to find out if the motor is ac or dc

@ira2000 , Micro Seiki knows pretty well what it is doing. Unless something is not working right I would leave it alone. Motors and control units have to be matched to each other in many ways. You can not just ram a motor onto any controller. You can buy controller/motor combinations that have wide speed ranges so they can be tuned to any platter. You would probably get more bang for your buck spending the money on a better tonearm and cartridge combo.

@ira2000 

Micro had both a DC and AC motor available for the 1500 series TT's.

Model RY1500D is DC servo motor.

Model RY1500A is an AC motor - these are quite rare.

I don't think the controllers will work in either case.

You might get an improvement plugging into a regenerated power source such as the PS Audio Power Plant, otherwise leave as is. I did clean and replace the oil on the Micro motor unit I had - but you need to know what you are doing.

If I were u I would get a very good tech to look at all the wiring to make sure there are no dry joints and to replace any faulty capacitors

@mijostyn is 100% correct about MS knowing what they were doing

What Dover said. An AC power regenerator might help, but neither the Walker nor the VPI is appropriate here.

Isn't a VPI SDS a low power AC regenerator that takes the incoming wall AC and regenerates it into a 20 watt variable AC frequency?

Yes, both frequency and voltage are adjustable. It’s really not suitable for DC motors.
 

My comment assumed that OP’s table had a ac synchronous motor.  If the motor is a dc, then your statement is correct. 

The point is you don’t want a controller that varies frequency and/or voltage to provide AC to a micro-seiki that in and of itself is a controller, at least as I understand it. Furthermore neither the VPI nor the Walker might output enough watts to drive the MS. But that’s secondary to the first point.