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Videos of Isostase, a motor controller and power supply for Transrotor turntables: the idea, the unit running, and the measurements. Three themes: discovering the unit, platter speed, and motors and belt. The narration is in English, with a synthetic voice.

Discover Isostase

The idea of Isostase in one minute, then the unit running on a Transrotor Zet 3: start, cleaning mode, silent run and stop.

Isostase, closed-loop motor control for Transrotor turntables Isostase on a Transrotor Zet 3: start, clean, silent run, stop

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Platter Speed

Why a turntable platter does not follow its motor, how an index disc regulates the speed, and the speed, wow and flutter measurements on a Zet 3.

Why the platter doesn't follow the motor: speed errors on a belt-drive turntable How the index disc regulates the speed: one measurement per revolution Isostase measurements: speed, wow and flutter, distortion

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Motors and Belt

Setting the two phases of a motor, the angle between two motors, and belt wear monitoring: three short animations on how Isostase handles them.

Ninety degrees, exactly? Why the two phases of a motor must be set with care Two motors, one platter: setting the angle between them Your turntable belt, watched: how Isostase does it

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