Re: variable leslie speed with variable resistor

["Frank Grabner" <fgrabner@eldec.com>]

> 
> Whoa, there, hoss.  The clock motor in the tone generator is a
> hysteresis synchronous motor.  As pointed out, this must lock at
> line frequency or it doesn't go.  The Leslie motors, at least in mine,
> are a 4-pole General Industries type and a two-pole kinda generic 
> shaded pole unit.  While there is some slip (depending on shaft
> loading) they are formally classed as synchronous (from a pedagogical
> standpoint) because the rotational speed (for 60 Hz, 1750-1800 rpm) is
> _primarily_ determined by the line frequency.  In any event, when they
> are run on 50 Hz they'll be slower (1450-1500 rpm).
> 
>                       A. B. Bonds
> 
 
I think we agree.  You said it better.
 
Frank Grabner
Fgrabner@ELDEC.COM