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Re: [TCML] spark gaps question



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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