Re: [TCML] spark gaps question

[bartb <bartb@xxxxxxxxxxxxxxxx>]

Hi Mathew,

No. If your going to use a choke, you'll want it on the hv side of the 
transformer and it needs to be wound for high voltage. The chokes your 
looking at would arc across the windings and short. Those who use chokes 
usually build their own. I don't use chokes myself. I use and recommend 
a Terry Filter for NST's.
http://www.classictesla.com/download/NST_Filter.jpg

If your wanting to use a choke, then maybe contact DC Cox on this list. 
He has a design for a high voltage choke.

Take care,
Bart


Matthew Stevens wrote:
> would one of these<http://www.radioshack.com/search/index.jsp?kwCatId=&kw=rf%20choke&origkw=rf%20choke&sr=1>possibly
> work as a filter for the HV transformer?
>
> On Sun, Mar 1, 2009 at 4:07 PM, Matthew Stevens
> <truesoutherngeek@xxxxxxxxx>wrote:
>
>   
> > thanks, I'll check that out!
> >
> >
> > On Fri, Feb 27, 2009 at 7:38 PM, Quarkster <quarkster@xxxxxxx> wrote:
> >
> >     
> > > Matt -
> > >
> > > There are five different Tesla coil diagrams on the Altair site.
> > >
> > > Only one (Mk-I) shows the spark gap in the correct position to minimize
> > > stresses on the HV transformer.
> > >
> > > Actually, the Tesla coils shown on this site are lacking numerous design
> > > features required for a tesla coil to operate reliably. You might have
> > > better luck using a more modern TC design from another source.
> > >
> > > For instance:
> > > 1. The spark gap should be located across the HV power supply.
> > > 2. The inverted cone primary provides no advantages over a properly
> > > designed flat spiral primary, and can cause multiple problems.
> > > 3. The neon sign transformer should be protected by a low-pass R-C filter
> > > array
> > >
> > > If you are not familiar with Tesla coil design requirements or theory of
> > > operation, I'd suggest that you spend some time at Richie Burnett's website,
> > > studying spark gap tesla coils. A little basic understanding of how a Tesla
> > > coil operates will go far in helping you to get a coil up and running.
> > >
> > > www.richieburnett.co.uk/tesla.shtml
> > >
> > > Then, spend some time on the Tesla Coil Web Ring looking at other Tesla
> > > coils, what components are used, how they are constructed, etc.
> > >
> > > Regards,
> > > Herr Zapp
> > > Regards,
> > > Herr Zapp
> > > --- On Fri, 2/27/09, Matthew Stevens <truesoutherngeek@xxxxxxxxx> wrote:
> > >
> > > From: Matthew Stevens <truesoutherngeek@xxxxxxxxx>
> > > Subject: [TCML] spark gaps question
> > > To: "Tesla Mailing List" <tesla@xxxxxxxxxx>
> > > Date: Friday, February 27, 2009, 1:36 PM
> > >
> > > I am trying to build a coil similar to this one from
> > > altair.org<http://www.altair.org>(see picture) for a science fair, and
> > > have a really dumb question about the
> > > spark gaps. Should the spark gap be wired in parallel, as it would appear
> > > from the diagram? That doesn't seem to make sense in my little brain, but
> > > then again, I haven't been doing this very long. Any help would be
> > > appreciated. Thanks
> > >
> > > The Southerngeek
> > > _______________________________________________
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> > >
> > >       
> >     
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