This message is being 're-forwarded' - the list thinks I'm sending a duplicate.
Dumb list.

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Good enough?

>
> > I may be a little off topic, but does anyone know how to get a floppy drive
> > to spin at 750 rpm. I am using old 5.25 drives, the motor seems to have a
> > comparator and bridge driver, but the adjusment pot makes little difference.
> >                 Any clues would be appreciayted.
>
> The drive 'flywheel' will have some kind of sensor on it - maybe magnetic,
> maybe optical. What if you added three more sensors, at 90 degrees on the
> circle? I suppose you would get one quarter of the speed. Do they rotate
> at 300 or 3000 RPM?

Adam Eberbach, R&D Engineer, Dataplex Pty. Ltd.