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4hv.org :: Forums :: Tesla Coils
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NST filter

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IamSmooth
Mon Oct 16 2006, 06:21PM
IamSmooth Registered Member #190 Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
 		Terry, what is the purpose of the 1000 ohm resistors for your filter? Is it to limit the current in a shorted condition when the NST can't current limit itself?
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Terry Fritz
Tue Oct 17 2006, 12:05AM
Terry Fritz Registered Member #393 Joined: Tue Apr 18 2006, 12:30AM
Location:
Posts: 297
 		Hi,

The resistors along with the caps form a low pass filter that keeps the high MHz plus noise out of the NST. See this:

Link2

Cheers,

Terry
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IamSmooth
Tue Oct 17 2006, 02:27AM
IamSmooth Registered Member #190 Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
 		Yes, I had read that. Nice work. I thought that the caps are all that were necessary to filter the high frequency. How do the resistors aid in this behavior?
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