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PID to control turntable speed?
mccarthyk
post Jan 18 2013, 05:09
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I just got a new (well, used) Technics SL-23 with a Shure cartridge, and I love the sound. The only thing is, it has a little trouble keeping speed. It doesn't change audibly but the little strobe-meter moves by the end of an LP.

I just got the idea of using PID controlled by an arduino or raspberry pi to control the motor speed. All I would need to do is add a color sensor and use the dots already on the platter for the calculation. And it would be easy to use a speed controller connected to the motor.

This seems pretty simple and I think it would really pay off.

Has anyone ever done anything like this?

This post has been edited by mccarthyk: Jan 18 2013, 05:12
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