2. analog
  3. 142368-26435

Speed stability issues with my Teres turntable...

After 18 YEARS of flawless service, my Teres 155 series turntable has developed speed instability issues. Sometimes the red light comes on. But even when it doesn't, I can hear it. It's gotten to the point I don't want to listen to it anymore. I've already done the usual drills such as rebooting the motor (non battery version), replacing the belt, etc. The motor has STILLl got torque galore, so I don't think it's failing yet.
Could it be motor speed controller circuitry components failing? Hope not-I've got the schematic for that, but don't have the technical know how to trouble shoot that. I've already done a search, and will be looking into the bearing well, checking the bearing, and checking the tightness of the pulley. Any other suggestions would be greatly appreciated! :)
analogdog

Showing 3 responses by tomwh

tomwh
150 posts
 
Check the side to side bearing play on the motor.  If you got 18 years out of that motor you did well.  Those Maxon motors do not like a lot of side load.  If you can do your own work check out the DIY forum and the the motor controller threads over there.  Bill/ Pyramid has a great thread with almost step by step instructions.

Enjoy the ride
Tom


tomwh
150 posts
 
I did make my own.  One is 32 lbs other is 38.  Sold my PVC and straight aluminum ones.  Have a chunk of delrin which I will lead load next.  

Any machine shop could do this. Let them measure your current platter and the rest is easy.  

Enjoy the ride
Tom

tomwh
150 posts
 
Those were the days when some real smart guys did some brainstorming and came up with rock solid ideas for the diy community.  Not a bunch of marketing b.s. or ego based crap.

The lead loaded platters are the real deal.  Mine are aluminum,  but heavy outer rim lead really helps almost any material.

Enjoy the ride
Tom
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