Re: Help with Terry Filter (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

Moderated and approved by: Gerry Reynolds <greynolds@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sun, 24 Dec 2006 16:38:51 -0700
From: Terrell Fritz <terrellfone@xxxxxxxxxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Help with Terry Filter (fwd)

Hi Chris,

Adding the filter might reduce the voltage a very small amount, but it 
really should have very little effect.  If it seems to be shorting the NST, 
get an ohm meter and start looking around for something shorted.  The only 
"load" the filter should have at DC is in the bleeder resistor strings.

Cheers,

         Terry


At 09:24 AM 12/24/2006, you wrote:
>Moderated and approved by: Gerry Reynolds <greynolds@xxxxxxxxxx>
>
>
>
>---------- Forwarded message ----------
>Date: Sun, 24 Dec 2006 23:54:53 +0800
>From: westland <westland@xxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Help with Terry Filter
>
>I've been trying to adjust the spark gaps on my Terry Filter, and had
>some questions about what to expect from including the Terry filter in
>your circuit.
>
>The Layout:  http://www.flickr.com/photos/51115445@N00/331858237/
>
>Hookup with all components connected:
>http://www.flickr.com/photos/51115445@N00/331858233/
>
>Gapped this close, but still will not spark at 15Kv:
>http://www.flickr.com/photos/51115445@N00/331858230/
>
>With the main spark gap:
>http://www.flickr.com/photos/51115445@N00/331858226/
>
>Initially I gapped the three spark gap electrodes without any of the
>resistors or other electronics connected, and came up with about 7-10mm
>gaps to handle 15Kv.  When I attached the Dale resistors and the arrays
>of caps, resistors and MOV's, these seem to draw off any voltage, and
>even setting the gaps at around 1 mm, I don't get a discharge (just some
>buzzing) at 15 Kv.   Nor can  I get any discharge from a simple
>connected spark gap (picture)
>
>I'm assuming that something in the filter is drawing off the current,
>and that in fact, the coil will not work with the Terry filter attached.
>
>Can anyone tell me if this is normal behavior; or whether I have a
>problem with my Terry filter electronics.
>
>Chris Westland
>
>
>
>
>____________________________________________________
>
>J. Christopher Westland, PhD CPA
>Professor, ISMT, University of Science & Technology, HK Clearwater 
>Bay,Kowloon, Hong Kong
>Tel: 852 2358 7643
>Fax: 852 2358 2421
>Mob: 852 9528 1745
>URL: ihome.ust.hk/~westland
>Mobile e-mail: chris.westland@xxxxxxxxxxxx