Re: [TCML] 60/50Hz Tesla Coil?

["David Rieben" <drieben@xxxxxxxxxxx>]

Hi Phillip,

I don't think that the "Arczilla" toys that Cameron and I
build are in the same catergory as the huge UHV trans-
formers to which Jim Lux is referring. We simply take
the standard output of a 14.4 kV pole transformer and
run its output through a capacitor of appropriate size to
induce resonant voltage rize after the arc is started. Jim
is referring to a huge transformer assembly who's out-
put voltage is in the megavolts, probably something si-
milar to this:  http://www.ece.msstate.edu/hvl/testing.html
Thanks for the complement, though. ;^)

David Rieben


----- Original Message ----- 
From: "Phillip Slawinski" <pslawinski@xxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Monday, April 19, 2010 7:05 AM
Subject: Re: [TCML] 60/50Hz Tesla Coil?


> Hi All,
>
> Resonance transformers have been done at the hobbyist level too.  Cameron
> prince and David Rieben both have such a setup.  I have several photos of
> such a setup on my flickr page.
> http://www.flickr.com/photos/pslawinski/tags/arczilla/
>
> -Phillip Slawinski
>
>
> On Sun, Apr 18, 2010 at 22:28, jimlux <jimlux@xxxxxxxxxxxxx> wrote:
>
> > mddeming@xxxxxxx wrote:
> >
> > > Hi Greg,
> > >
> > > Remembering that f=1/[2pi*sqrt(LC)], if you want f to be 1/3000th of a
> > > regular tesla coil, then the product LC must be 9,000,000 times bigger. 
> > > Try
> > > figuring out the physical sizes.
> > > Matt D.
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Greg Morris <gbmorris@xxxxxxxxx>
> > > To: Tesla list <Tesla@xxxxxxxxxx>
> > > Sent: Sun, Apr 18, 2010 2:46 pm
> > > Subject: [TCML] 60/50Hz Tesla Coil?
> > >
> > >
> > > So I just built my first solid state coil this year, and in thinking 
> > > about
> > > he nature of primary circuit driving, I got wondering, wouldn't it be
> > > ossible to design a Tesla Coil in which the secondary resonated at (or
> > > ear) 60/50Hz? The primary coil could be plugged directed into the wall
> > > with
> > > o need for any driving circuitry, save for maybe a reactor to limit the
> > > urrent.
> >
> >
> > what you're really talking about is a classic resonance transformer.
> > They're used in HV testing, and were used decades ago for very high 
> > energy
> > X-rays (e.g. by Charlton, et al.) at the megavolt level.
> >
> > They're almost always done with iron cores (that's the only way you can 
> > get
> > the inductance large enough and have the thing be a reasonable size).
> >
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