RE: DC motor (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 01 Aug 2007 21:35:56 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: RE: DC motor (fwd)

It very well could have been the dimmer, but it did the same thing when I 
hooked it up to a variac (it was a lousy variac though, I hand wound it 
myself when I was bored one day at school, the windings would smoke at 
certain positions, and I had it connected as a variable choke, not a 
transformer (in series instead of parallel) it did vary the speed however).  
I'm getting a real variac now, perhaps I'll try the motor again, before 
getting a different one.
Scott Bogard.


>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: RE: DC motor (fwd)
>Date: Wed, 1 Aug 2007 17:06:13 -0600 (MDT)
>
>
>---------- Forwarded message ----------
>Date: Thu, 2 Aug 2007 00:15:00 +0200
>From: David Svensson <david@xxxxxxxxx>
>To: 'Tesla list' <tesla@xxxxxxxxxx>
>Subject: RE: DC motor (fwd)
>
>I had the exact same problem with my gap.
>But I also had a dimmer for varying the speed and it was the dimmer that
>stopped working when the coil was running it had nothing to do with the
>motor. I guess that the triac in the dimmer didn't like the interference
>even with a mains filter./David
>
>---------- Forwarded message ----------
>Date: Wed, 1 Aug 2007 14:29:57 -0700 (PDT)
>From: Yurtle Turtle <yurtle_t@xxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: DC motor (fwd)
>
>That's odd, since I and a number of others have placed
>vacuum cleaner motor gaps right under our coils. I
>recently had mine under my BigAss coil, running over
>10 kVA.
>
>Adam
>
>--- Tesla list <tesla@xxxxxxxxxx> wrote:
>
> >
> > ---------- Forwarded message ----------
> > Date: Wed, 01 Aug 2007 16:11:41 -0400
> > From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> > To: tesla@xxxxxxxxxx
> > Subject: Re: DC motor (fwd)
> >
> > I had a motor from a vacuum cleaner that was AC/DC.
> > It worked great when
> > the TC was turned off, you could vary the speed
> > using a dimmer switch or a
> > variac.  But when the TC was turned on, interference
> > stopped it from
> > turning.  Some good shielding might have fixed this,
> > but a simple grounded
> > aluminum foil shield did nothing.  Thanks.
> > Scott Bogard.
>
>
>
>
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