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Motor Vibrations

I'm in the midst of tuning/upgrading a Well Tempered Classic. The original AC motor has a significant vibration, so I've been experimenting with the Origin Live DC motor and power supply. The OL motor vibrates fairly significantly, too, enough to be transmitted through the belt,platter and into the cartridge. I can also clearly feel the vibration in the belt whien I lightly touch it. I've experimented with different belts (the original rubber plus silk and nylon cords and dental floss) and found that the only way to reduce the vibration tranmitted to the cartridge is to loosen the belt tension to the point that there starts to be some "wow". Do all of you with DC motors experience vibration? If so, how much?

I suspect that I may have a bad motor, but the dealer tells me that the motors do vibrate to some degree. I could change over to Well Tempered's new AC motor which has some circuitry that is supposed to minimize vibration, cogging, etc. (See their website for details)

Any thoughts, suggestions, questions are welcomed.

Thanks
Jim
jimbo3

Showing 5 responses by jimbo3

jimbo3 OP
304 posts
 
Tom- I do have the OL power supply and regulator, but perhaps one of these are defective??
jimbo3 OP
304 posts
 
Tom or Doug- does your motor vibrate to the touch? Does the belt material (whatever you are using) vibrate when you lightly touch it while operating? Mine is relatively quiet, it's just that it vibrates to the touch.

If I can't find a suitable OL motor and the Teres motor doesn't fit, should I go with the latest Well Tempered AC motor or are there some other DC kits out there?

Thanks
Jim
jimbo3 OP
304 posts
 
Thanks, Doug and Tom. I kinda figured something was wrong with the OL motor.

I looked into the Teres motor and I don't think it won't fit into the WT. I don't recall the exact measurements of the Teres motor- could eother of you measure height and width of yours for me? I'll double-check my table to see if I can make something work.

BTW- The OL motor is a Maxon, although not the same model as the one that Teres uses.

Jim
jimbo3 OP
304 posts
 
Thanks, Tom. He is going to be sending me another motor and if that doesn't do the trick, he's going to send an entire kit. I'll post the results.

Regards
Jim
jimbo3 OP
304 posts
 
I initially ran the motor for 5 days without a load and now, after running the motor under full load for a couple of days this week, it seems to have quieted down dramatically and the problem seems to have resolved itself.

Thanks to Jay at Audio Revelations for his assistance and persistence.

Jim
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