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RE: dual mot tc (fwd)

---------- Forwarded message ----------
Date: Fri, 5 Oct 2007 14:29:08 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: dual mot tc (fwd)


Clive,
     This will work, but you will need to drink a lot of soda!  You will
have to wire at least two bottles in series to prevent damage to the
bottles, I know, I have used them in a 2 MOT circuit before, they go bad
quickly.  You would be better off, in my opinion, to use glass bottles,
that way you don't need to series them, and while your capacitance may be
a bit lower, it won't be too bad because of glass's much higher
dielectric.  If you plan on building a large secondary, you will need an
awful lot of bottles no matter what you decide to use.  Best of luck.
Scott Bogard.

> 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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