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Re: dual mot tc (fwd)

To: tesla@xxxxxxxxxx
Subject: Re: dual mot tc (fwd)
From: "Tesla list" <tesla@xxxxxxxxxx>
Date: Wed, 10 Oct 2007 19:41:37 -0600 (MDT)
Delivered-to: testla@xxxxxxxxxx
Delivered-to: tesla@xxxxxxxxxxxxxxxx
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Resent-date: Wed, 10 Oct 2007 19:41:37 -0600 (MDT)
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---------- Forwarded message ----------
Date: Wed, 10 Oct 2007 08:57:56 -0600
From: resonance <resonance@xxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: dual mot tc (fwd)



Forget the wine bottles.  Use MMC caps.  Very inexpensive and they will 
outperform glass every time.

Dr. Resonance

Resonance Research Corp.
www.resonanceresearch.com


----- Original Message ----- 
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, October 10, 2007 8:03 AM
Subject: Re: dual mot tc (fwd)


>
> ---------- Forwarded message ----------
> Date: Tue, 9 Oct 2007 08:04:05 -0700
> From: Clive Hansen <mrclivehansen@xxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: dual mot tc (fwd)
>
> It looks like I could get by with two wine botttles filled with brine up 
> to
> the beginning of the neck with oil floating on top of the brine and copper
> wire connecting them together serving as one plate and the salt water in 
> my
> bucket with oil on top of it as the other plate. The amount of salt water 
> in
> the bottles and the bucket could be adjusted to yield  a capacitance of 
> 7nf.
>
>
> On 10/9/07, Tesla list <tesla@xxxxxxxxxx> wrote:
>>
>>
>> ---------- Forwarded message ----------
>> Date: Tue, 9 Oct 2007 00:20:43 -0500
>> From: Joshua Johnson <jjohnson98@xxxxxxxxx>
>> To: Tesla list <tesla@xxxxxxxxxx>
>> Subject: Re: dual mot tc (fwd)
>>
>> This site has a calculator for bottle caps near the bottom of the page.
>> http://www.classictesla.com/java/calculat.html
>> I have a sneaky suspicion if you use an NST it will be a 15kV 30mA and
>> then
>> you'll want about 7.4nF for an LTR cap. 5nF puts you pretty close to
>> resonance for that transformer type and could cause NST failure.
>> Good explanation of LTR:
>> http://www.pupman.com/listarchives/2001/January/msg00096.html
>>
>> Good luck,
>> Josh
>>
>> On 10/8/07, Tesla list <tesla@xxxxxxxxxx> wrote:
>> >
>> >
>> > ---------- Forwarded message ----------
>> > Date: Mon, 8 Oct 2007 20:55:51 -0700
>> > From: Clive Hansen <mrclivehansen@xxxxxxxxx>
>> > To: Tesla list <tesla@xxxxxxxxxx>
>> > Subject: Re: dual mot tc (fwd)
>> >
>> > Is there a formula for calculating the capacitance if using several 
>> > wine
>> > bottles (I am looking for around 5nf)
>> >
>> > On 10/8/07, Tesla list <tesla@xxxxxxxxxx> wrote:
>> > >
>> > >
>> > > ---------- Forwarded message ----------
>> > > Date: Mon, 8 Oct 2007 11:43:02 -0700 (PDT)
>> > > From: G Hunter <dogbrain_39560@xxxxxxxxx>
>> > > To: Tesla list <tesla@xxxxxxxxxx>
>> > > Subject: Re: dual mot tc (fwd)
>> > >
>> > > No problem.  Glass bottles and NSTs go together well.
>> > > 12oz (355ml) beer bottles are good for 750-900pF each.
>> > > A 6-pack is worth roughly 5nF.  A 12-pack will get
>> > > you 10nF.  These can stand up to any NST, including
>> > > the 15kv units.  For a "dry" cap, try wrapping the
>> > > bottles in kitchen foil.  You can stick it on with
>> > > spray glue.  Just roll the bottle up in foil, then
>> > > smooth it down using the back of a big spoon.
>> > >
>> > > I've assembled caps like this as big as 80nF
>> > >
>> > > http://hot-streamer.com/greg/bottle.htm
>> > >
>> > > and gotten satisfactory performance from them.  They
>> > > are not in the same league as a commercial plastic
>> > > film pulse cap, but they are very inexpensive.
>> > >
>> > > Cheers,
>> > >
>> > > Greg
>> > >
>> > > --- Tesla list <tesla@xxxxxxxxxx> wrote:
>> > >
>> > > >
>> > > > ---------- 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
>> > > > > > > > > >
>> > > > > > > > > >
>> > > > > > > > >
>> > > > > > > > >
>> > > >
>> > > _________________________________________________________________
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