Re: "tty sync motor" SRSG

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jeremy Scott by way of Terry Fritz <teslalist-at-qwest-dot-net>" <supertux1-at-yahoo-dot-com>

Does it get really hot too?

Your problem may be that you're loading the motor
too much, causing it to slow down.

A small 'run' capacitor across the main leads
might help, but try reducing the weight of your
rotating electrode. If it's a disc, cut some holes
in it?



--- Tesla list <tesla-at-pupman-dot-com> wrote:
 > Original poster: "Peter Lawrence by way of Terry
 > Fritz <teslalist-at-qwest-dot-net>"
 > <Peter.Lawrence-at-Sun.COM>
 >
 >
 > I've finally built a SRSG around a mini (tty)
 > synchronous motor, but after
 > putting it into my TC I'm sure its not really acting
 > synchronously.
 >
 > My TC output's longest streamers are about the same
 > as with a static gap,
 > but the output varies from long and loud to short
 > and quiet at about
 > 5-cycles-per-second, like the motor is rotating
 > 5-RPS slower than the
 > 30-RPS (1800 RPM) on the motor name plate (which
 > also says "synchronous").
 > Also rotating the motor to change the SG phase has
 > no effect on the
 > streamers or the sound.
 >
 > I've looked inside, and the rotor has 4 flats ground
 > off of it, just like
 > its 'sposed to.  It's got a run capacitor connected
 > to one winding and
 > 120vac to the other winding, I'm pretty sure I
 > already tried switching
 > which winding is used for what and the motor would
 > not run at all when
 > I did this. The capacitor matches the size stamped
 > on the motor nameplate,
 > and when I tried a larger one the motor would not
 > run.
 >
 > What next?
 >
 > thanks,
 > Pete Lawrence.
 >
 >