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 13:37:15 -0600
From: Shaun Epp <scepp@xxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Help with Terry Filter (fwd)

Hello Chris,

You picture looks about right, but your safety gap is set way to close 
(which you mentioned).

What component values are you using?  What value of resistors, Capacitors 
and MOVs are you using?


----------Ahh -----  You have your power resistors wired across the MOVs, 
caps and resistors.  That would kill your power.  Take another look at the 
image I sent you.


Shaun

----- Original Message ----- 
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, December 24, 2006 10:24 AM
Subject: Help with Terry Filter (fwd)


> 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
>