I don't know about the jet in particular but many of the low HP variable
speed motors were actually universal motors with a "voltage regulator" to
control the speed. I believe the carbatec lathe has this system.
This system does not work on AC induction motors. The electronic system uses
a frequency controller and a 3 phase motor. This is what my Oneway has
A third system is present on the NOVA DVR.


"Arch" wrote in message
...
After a week without an answer, I wonder: Plonked again? Asked a wrong
or boring question? Nobody cares? Nobody knows yet? Very few of our
lathes are turned by waterfalls, gasoline, steam, wind, fusion of atomic
nuclei, perpetual motion or even an arm or a leg. There are many
types of small electric motors and many ways to control and vary their
speed. All of us use electric motors, and knowing a little bit about
them might be helpful to someone, especially as recent lathes sport
electronic variable speed control. The advent of variable reluctance
methods has changed some of our notions about methods used to vary motor
speed. I started to post a primer re these methods, but quickly realized
it would be far OT, plus an arrogance to think I could simplify
something that I know little about. Hence my simple question about the
mini-jet's type of motor and speed control. Arch

Fortiter,