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RE: dual mot tc (fwd)

To: tesla@xxxxxxxxxx
Subject: RE: dual mot tc (fwd)
From: "Tesla list" <tesla@xxxxxxxxxx>
Date: Mon, 8 Oct 2007 22:09:01 -0600 (MDT)
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---------- Forwarded message ----------
Date: Mon, 8 Oct 2007 23:53:42 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: dual mot tc (fwd)


Clive, I forgot to mention, an NST is also better because you will need
much less capacitance than with a MOT 2-pack (due to both the higher
voltage, and lower current), making glass bottles even more practical for
you!  Again, good luck.

Scott Bogard.

> Date: Mon, 8 Oct 2007 21:29:43 -0600
> From: tesla@xxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: RE: dual mot tc (fwd)
> 
> 
> ---------- Forwarded message ----------
> Date: Mon, 8 Oct 2007 11:05:15 -0400
> From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: RE: dual mot tc (fwd)
> 
> 
> Clive,
>      Bottle caps should work fine with an NST, I used them with my OBIT
> stack, which is similar to an NST in most respects.  If you are concerned
> about voltage breakdown, remember that glass has a dielectric strength of
> about 200-300 V/mill, so a piece of glass an eighth of an inch thick will
> withstand about 25000 volts.  Most jars are a little thicker that that, so
> you should be fine with any NST.  An NST is also better because of the
> higher working voltage of the spark gap makes it easier to construct, and
> you will have less problems with power arcing due to the lower current.  
> If you have not already procured an NST, check out OBITs (oil burner
> ignition transformer) as well, you may be able to get them for free from a
> furnace repair place, they are generally less hardy, but if treated well,
> they will due nicely (I've never lost an OBIT in TC service yet, excluding
> the ones that were already damaged).  You may want to pick up a few, and
> stack them for more current.  Good luck.
> 
> Scott Bogard.
> 
> 
> > Date: Mon, 8 Oct 2007 07:51:03 -0600
> > From: tesla@xxxxxxxxxx
> > To: tesla@xxxxxxxxxx
> > Subject: Re: dual mot tc (fwd)
> > 
> > 
> > ---------- Forwarded message ----------
> > Date: Sun, 7 Oct 2007 13:40:06 -0700
> > From: Clive Hansen <mrclivehansen@xxxxxxxxx>
> > To: Tesla list <tesla@xxxxxxxxxx>
> > Subject: Re: dual mot tc (fwd)
> > 
> > I think I have decided to possibly steer away from the mots and instead use
> > an nst because of the lower output current for safety. Does anyone see this
> > causing problems with the previously mentioned capacitor setup?
> > 
> > On 10/7/07, Clive Hansen <mrclivehansen@xxxxxxxxx> wrote:
> > >
> > > Okay, from what I can gather several glass bottles filled with brine with
> > > copper tubes inside them sitting a container filled with brine would
> > > probably work the best for what I have access to. That is probably what I
> > > will go with then.
> > >
> > > On 10/6/07, Tesla list <tesla@xxxxxxxxxx> wrote:
> > > >
> > > >
> > > > ---------- 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
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > > > _________________________________________________________________
> > > > > > > Boo! Scare away worms, viruses and so much more! Try Windows Live
> > > > > > OneCare!
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> > > > > > >
> > > > > >
> > > > > > _________________________________________________________________
> > > > > > Live Earth '07 updates, artist info & concert streams!
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> > > > > >
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > >
> > > > _________________________________________________________________
> > > > Live Earth '07 updates, artist info & concert streams!
> > > >
> > > > http://ninemsn.com.au/share/redir/adTrack.asp?mode=click&clientID=790&referral=windowslivehotmailtagline&URL=http://liveearth.ninemsn.com.au
> > > >
> > > >
> > > >
> > >
> > 
> > 
> 
> _________________________________________________________________
> Peek-a-boo FREE Tricks & Treats for You!
> http://www.reallivemoms.com?ocid=TXT_TAGHM&loc=us
> 
> 

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