Re: chokes

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi,

The paper at:

http://hot-streamer-dot-com/TeslaCoils/MyPapers/rlcfilter/rlcfilter.html

touches on this subject.  Also computer models could be used for such an
analysis:

http://hot-streamer-dot-com/TeslaCoils/Programs/Programs.htm

Microsim and the premade models are ready to go there...  I have tried a number
of choke configurations and the real problem is the coil acts like a stored
energy element and getting rid of that energy is the problem.  Chokes really
like to ring in filter circuits and I never could find a good way to use them. 
Also remember that with the secondary winding inductance already being in the
thousands of Henries, a few more Heneries just does not matter.  All the high
frequency voltages still get absorbed in the outer few windings of the
secondary.

http://hot-streamer-dot-com/TeslaCoils/Misc/Filter.jpg

May also be of interest.  Anyone who wants to try other configurations or ideas
can do so for the price of heating up a CPU :-)

Cheers,

        Terry



At 12:30 PM 10/3/2001 -0400, you wrote: 
>
> In a message dated 10/3/01 10:53:21 AM Eastern Daylight Time,
> tesla-at-pupman-dot-com writes: 
> snip...
>
> Hi Greg, 
> On this subject you will find as many opinions as there are "Biological
> exhaust systems" (Everybody's got one.) To my knowledge, no one has done a
> long-term, controlled, comparison study in coils identical except for filter
> chokes. Most evidence is anecdotal-- ("Such-and-such seems to work for me, it
> must be right.") The cost of such a comprehensive study would be beyond the
> means of most Coilers, since it requires a statistically significant number
> of transformers to "run to failure". Perhaps the Geek Group could undertake
> such a project. For now, this is still an experimental science. 
>
> Matt D.