Re: Filtering on Neons

To: tesla-at-grendel.objinc-dot-com
Subject: Re: Filtering on Neons
From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
Date: Fri, 2 Feb 1996 09:51:31 +1200
>Received: from rata.vuw.ac.nz (root-at-rata.vuw.ac.nz [130.195.2.11]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id NAA23625 for <tesla-at-grendel.objinc-dot-com>; Thu, 1 Feb 1996 13:50:40 -0700

Hi all,
       Further query on this from Phil....

> Well, I put two beads each on both lines out of the transformer secondary,
> and a couple more on the feed to the high voltage transformer. I think the
> performance of my coil was unaffected, by and large. However, I did find that
> the addition of the ferrites shifted the tuning position of the coil - I had to
> use an extra two turns of primary.

Presumably this is operational tuning, yes?  If you attempted to tune
using scope/sig gen with the transformer connected I would have 
expected a difference. But in operation, The sparkgap should be 
leaving the transformer out of the ringing circuit (shorting it) - 
or do you have the primary capacitor connected across the transformer?

Malcolm