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Re: remote location of NSTs - away from coil base?



Original poster: "resonance" <resonance@xxxxxxxxxxxx>



With our pole pigs we always use 12 ---- 200 watt resistors in parallel ---
final impedance is 50 Ohms which sacks most transients from hitting the pig. We use an air core choke between resistors and sparkgap also with our pole powered systems. Pigs may take it for awhile but I don't believe in child abuse (piglet abuse in this case).

Good engineering is always a good idea.

Dr. Resonance



---- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, September 06, 2006 12:38 PM
Subject: Re: remote location of NSTs - away from coil base?


Original poster: "Kurt Schraner" <k.schraner@xxxxxxxxxx>

Hi Gomez,

perhaps no need to scrap the coax idea. For my big B&W coil I solved the problem by adding 2 series power resistors.

please see http://www.pupman.com/listarchives/2005/Oct/msg00610.html

BTW: the braid of the coax should be shown grounded. Please view in fixed font.

Best regards

Kurt

Tesla list wrote:
Original poster: Gomez Addams <gomezaddams@xxxxxxxxx>


On Sep 4, 2006, at 4:42 PM, Tesla list wrote:
<snip>
I guess I will have to scrap the coax idea, unless I strip the shield
off, but the shield was half of the reason for using it - I wanted to
protect against secondary strikes to the HV lines from the NST filter
- "defense in depth"!

 - G.