On 19/01/2017 04:44, Andy Burns wrote:
dennis@home wrote:

I wonder if it would work sat directly on top of a big stepper motor.

You still have a physical connection between your motor and turntable? A
bit old hat, isn't it :-P

https://maglevaudio.com

Wouldn't a laser reading the grouve instead of a physical needle be more
to the point? Or do you need a physical needle to plough through the
muck in the grouve?

Of course, it's been done:
http://en.wikipedia.org/wiki/Phonograph#Optical_readout

Linear tracking was another fun idea that never caught on:
http://en.wikipedia.org/wiki/Phonograph#Linear_tracking

--
Max Demian