Fwd: Re: (ET) pwm

[Rod Hower <evdesigner yahoo com>]

 Check out this site for information on
 building your own;
 http://www.4qd.co.uk/faq/index.html
 Rod
> 
> --- neil <wombat dssinternet net> wrote:
> 
> > Just did a "google" on "pulse width modulator",
> all
> > kinds of hits.  Many 
> > years ago, my son and I built a model railroad
> speed
> > control using a PWN 
> > circuit, at that time we had to use discrete
> > components, now I think 
> > there are IC's to do the timing, I'd use power
> FETS
> > for the switches (I 
> > think), rather than transistors.
> > 
> > Sounds like fun,  I see an occasional mini or
> > scooter at the weekly 
> > auction,  maybe have to get one and play.  We fly
> > freeflight model 
> > airplanes, sometimes have a long chase, some use
> > "gassies", an electric 
> > would be better.
> > 
> > wombat
> > 
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> > Elec-trak cosmos phy tufts edu
> >
>
https://cosmos.phy.tufts.edu/mailman/listinfo/elec-trak
> > 
> 
>