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Users of chemistry and biochemistry labs will be familiar with magnetic stirrers. These have a rotating magnet in a sealed box which, through the magic of magnetism, rotates a stirrer (usually something ferrous covered in an inert plastic) in a beaker placed on top of the box.
This idea uses the
same principle to turn a record turntable In which the turntable platter contains some ferrous thing which is dragged around by the rotating magnet. Hiding the motor in a box allows you to isolate any vibration or noise and thus you get all the benefits of a direct drive turntable with none of the disbenefits of vibration and noise.
(Hopefully the really powerful magnets used for this won't disturb the sensitive magnets in the stylus pickup.)
||Plus, you might be able to up the flux and get the
turntable to float in mid air.
||Hmm - the world of high-end audio is full of
ludicrously expensive, gimmicky bits of high
technology that claim to make a difference to sound
quality but in fact do nothing - and so might not be
the best area to try and craft new half-baked ideas
in... (thanks [bigsleep] - that turntable is hilarious!)
||In tribute to the lab version, if spun too fast, the
record should be flung around chaotically, causing
muttered swearing and fiddling around with a
moderately responsive dial.