[Lab] what are these motors?

[Richard Guy Briggs]

On Mon, Aug 01, 2011 at 09:54:38PM -0400, Darcy Whyte wrote:
> Why does it have 4 wires?

Good question.  Maybe two for field and two for stator?  It is,
essentially, a stepper...

> On Mon, Aug 1, 2011 at 9:50 PM, Richard Guy Briggs <rgb at tricolour.net>wrote:
> > On Sat, Jul 30, 2011 at 01:16:47PM -0400, Darcy Whyte wrote:
> > > Anybody know what these motors are?
> > >
> > > http://mambohead.com/2011/07/120v-timing-motors/
> >
> > They are 120v 60Hz A/C synchronous motors.  They could be used in
> > clocks, washing machine or clothes dryer timing dials, etc.  I have one
> > in my Hammond organ that precisely sets the tuning of the instrument.
> > It spins the electromechanical tonewheels at the correct frequency to
> > generate the tones for musical notes, hence the organ is not tunable and
> > everything else has to tune to it.  In fact, Laurens Hammond was
> > originally an electric clock inventor and may actually hold the patent
> > for the motor itself, if not its use as an electric clock timebase.
> >
> >        slainte mhath, RGB

	slainte mhath, RGB

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