Re: [TCML] Terry Filter Question

[Brandon Hendershot <brandonhendershot@xxxxxxxxx>]

Oh, I'm sorry. I totally told you the wrong thing. I don't know what I  
was thinking!
Brandon

On Feb 20, 2010, at 5:06 PM, "Lau, Gary" <Gary.Lau@xxxxxx> wrote:

> You cannot change the order of the components.  An R-C low-pass  
> filter only works if it's built to the correct topology - it only  
> works in one direction.
>
> Sorry,
> Gary Lau
> MA, USA
>
> > -----Original Message-----
> > From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> > Behalf Of otmaskin5@xxxxxxx
> > Sent: Saturday, February 20, 2010 5:50 PM
> > To: tesla@xxxxxxxxxx
> > Subject: [TCML] Terry Filter Question
> >
> >
> > The circuit diagrams for NST protection that I have seen have the  
> > components in
> > this order:
> >
> > NST hot...to MOVs & bypass capacitors...to the 1K Ohm resistor (in  
> > series)...to the
> > main spark gap
> >
> > My question is whether the placement of the resistor is critical  
> > within the order of
> > the components.  In other words, would the components work in this  
> > order:
> >
> > NST hot...to 1K Ohm resistor (in series)...to MOVs & bypass  
> > caps...to the main
> > spark gap.
> >
> >
> > The current project I'm working on has space limitations & a less  
> > that optimal layout
> > of the lower deck components (poor planning on my part - doh!).   
> > The second
> > option would allow for more direct layout of the primary circuit  
> > wiring and save me
> > some work in the process.  I'd appreciate any advice as to whether  
> > this would work
> > properly.
> >
> > Thanks, Dennis Hopkinton MA
>
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