Re: RF filter circuit (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sun, 28 Oct 2007 07:09:05 -0700 (PDT)
From: Kris Grillo <kristianisawesome@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: RF filter circuit (fwd)

I had built a terry filter for my NST power supply, and later used it on
my 2 MOT w/ half wave voltage doubler power supply.
http://img98.imageshack.us/img98/8721/nstfilter2sk0.jpg Terry has
mentioned that the filter is rated for .24 amps max. I noticed that the
resistors get HOT quick using the two mots. There temp would exceed the
capability of my IR temp gun (450F) in a about 60 seconds of run time, but
without it I was frying diode after diode. I don't even dare try it on the
4 stack.  I am looking for the math involved in sizing the resistors to
the power supply. I have ordered two sets of power resistors, 100ohm 200W
and 50ohm 250W. These are going to be my trial and error sets. If they
don't work, I'll just keep trying different values until things stop
burning up, I guess.


Tesla list <tesla@xxxxxxxxxx> wrote: 
---------- Forwarded message ----------
Date: Sat, 27 Oct 2007 13:46:46 -0400
From: Slurp812 
To: Tesla list 
Subject: Re: RF filter circuit (fwd)

Heres what most around here talk about. Not sure who's page this is,
but this it the "terry filter" Iv heard about. I am in the process of
making one myself, minus the MOV's for now anyways...

http://www.ozonejunkie.com/Images/nst%20filter.gif


On 10/26/07, Tesla list  wrote:
>
> ---------- Forwarded message ----------
> Date: Fri, 26 Oct 2007 13:34:13 -0700 (PDT)
> From: Kris Grillo 
> To: tesla@xxxxxxxxxx
> Subject: RF filter circuit
>
> I have been trying to figure out how to properly size the components for
> an rf filter to use with my 4 mot tesla coil power supply. Searching for
> RC circuit, RF filter circuit, passive RF filter circuit, low pass filter
> circuit, etc, has yielded many descriptions and schematics covering a very
> broad range of applications. I'm not sure what I should be specifically
> looking for. Also, I do have some formal education in mathematics
> (college, 8 years ago, 3 semesters of algebra, 1 of pre calc,) but I have
> no formal education in electronics and most of the math descriptions
> contain symbols that I am unfamiliar with what they represent. I was
> wondering if anyone would happen to know of any good web pages I could
> check out that would help me in my quest to learn and understand this
> circuit? Maybe something with mathematical examples worked out, if anyone
> knows of any such sites.
>
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