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RE: dual mot tc (fwd)

---------- Forwarded message ----------
Date: Sat, 6 Oct 2007 16:49:04 +1000
From: A. Wang 2007 T476202 <tangara_02@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: dual mot tc (fwd)


Sounds fine to me, though you might need a few for a decent tank
capacitance value. That's something I need to try making meself. If you
can, it is slightly more preferable to try to get a commercial pulse
capacitor, MMC, or doorknobs. But otherwise bottle capacitors work better
than some other commercial capacitors.

Good luck with your coil,

A.Wang 2007
_____________________________________________________________

"If you do nothing, nothing will go wrong"
 
Bean- The Ultimate Disaster Movie

> Date: Fri, 5 Oct 2007 11:17:38 -0600
> From: tesla@xxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: Re: dual mot tc (fwd)
> 
> 
> ---------- Forwarded message ----------
> Date: Fri, 5 Oct 2007 07:37:05 -0700
> From: Clive Hansen <mrclivehansen@xxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: dual mot tc (fwd)
> 
> I think I will be using caps made from a 2 liter plastic bottle filled with
> salt water with a copper pipe suspended in it and tin foil covering the
> outside of the bottle. Does anyone think that this would work acceptably?
> 
> On 10/4/07, Tesla list <tesla@xxxxxxxxxx> wrote:
> >
> >
> > ---------- Forwarded message ----------
> > Date: Fri, 5 Oct 2007 15:12:30 +1000
> > From: A. Wang 2007 T476202 <tangara_02@xxxxxxxxxxx>
> > To: Tesla list <tesla@xxxxxxxxxx>
> > Subject: RE: dual mot tc (fwd)
> >
> >
> > Don't even bother thinking about the MO caps. They have high losses at
> > 500Hz-ish, let alone RF. If you can, get some tinfoil and projector
> > slides, and you can build a plate capacitor. Otherwise, your plan is
> > pretty much fine as i see it. I went with a MOT coil myself.
> >
> > A.Wang 2007
> > _____________________________________________________________
> >
> > "If you do nothing, nothing will go wrong"
> >
> > Bean- The Ultimate Disaster Movie
> >
> > > Date: Thu, 4 Oct 2007 22:43:27 -0600
> > > From: tesla@xxxxxxxxxx
> > > To: tesla@xxxxxxxxxx
> > > Subject: RE: dual mot tc (fwd)
> > >
> > >
> > > ---------- Forwarded message ----------
> > > Date: Fri, 5 Oct 2007 00:32:40 -0400
> > > From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> > > To: Tesla list <tesla@xxxxxxxxxx>
> > > Subject: RE: dual mot tc (fwd)
> > >
> > >
> > > Clive,
> > >      A few suggestions, wire your MOTs in series/anti-parallel
> > > configuration, this means have the two MOT cores wired together with a
> > > ground (like a center tap grounded NST) and wire the primaries in
> > > parallel.  If you cannot draw any arcs between the two HV outs, then
> > > reverse polarity of only one of MOT primaries.  1/4 cu tubing is fine.
> > > The advantage of this is that the MOTs are working at their ordinary
> > > voltage ratings, and oil is not necessary (they also run quieter this
> > way,
> > > as their noise cancels each other out, kind of cool).  18AWG wire is
> > kind
> > > of big, unless you plan on building a big secondary, like 12-in
> > diameter,
> > > (I assume you plan on using 18 AWG "magnet wire" correct?).  Three
> > segment
> > > spark gap should be fine if designed properly, I cannot help you there,
> > > never had good luck with multi-segment gaps, I went strait to a rotary
> > > gap.  You cannot use MO caps for a tank cap, they will be terribly
> > > inefficient, and I've read about them blowing up in TC use (you cannot
> > > believe everything you read however, perhaps someone on the list can
> > > verify or discredit this).  Your best bet would be a proper MMC with CD
> > > caps, or if you are really strapped for funds (like me), you could build
> > a
> > > cap the old fashioned way, check the archives if you are interested.  I
> > > hope this helps, good luck. Scott Bogard.
> > >
> > > > Date: Thu, 4 Oct 2007 20:39:01 -0600
> > > > From: tesla@xxxxxxxxxx
> > > > To: tesla@xxxxxxxxxx
> > > > Subject: dual mot tc (fwd)
> > > >
> > > >
> > > > ---------- Forwarded message ----------
> > > > Date: Thu, 4 Oct 2007 17:13:47 -0700
> > > > From: Clive Hansen <mrclivehansen@xxxxxxxxx>
> > > > To: Tesla list <tesla@xxxxxxxxxx>
> > > > Subject: dual mot tc
> > > >
> > > > Hello,
> > > >      I am thinking of building a coil using two mots in series under
> > oil
> > > > with an inductive ballast to limit current. For a tank cap, I want to
> > use
> > > > two or three microwave oven caps in series. My spark gap will be a
> > three
> > > > segment gap quenched by a leaf blower. I want to use 1/4in copper
> > piping for
> > > > the primary and 18 gauge wire for the secondary. I must use microwave
> > oven
> > > > parts because they are very cheap. If anyone sees any problems with
> > this
> > > > setup please let me know.
> > > >
> > > > Thanks,
> > > > Clive
> > > >
> > > >
> > >
> > > _________________________________________________________________
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> > >
> >
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> >
> 
> 

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