[TCML] Terry Filter Question

[Brandon Hendershot]

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 at hp.com> 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 at pupman.com [mailto:tesla-bounces at pupman.com] On
>> Behalf Of otmaskin5 at aol.com
>> Sent: Saturday, February 20, 2010 5:50 PM
>> To: tesla at pupman.com
>> 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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