Re: help - topload

• To: tesla-at-pupman-dot-com
• Subject: Re: help - topload
• From: "Malcolm Watts" <malcolm.watts-at-wnp.ac.nz> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Thu, 09 Sep 1999 12:24:04 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

In this case:

> Original Poster: Stan <sdarling-at-columbus.rr-dot-com> 
> 
> Hello folks, my coil is as follows:
> 
> 12/60 NST
> 8 seriesed Victoreen spark gaps
> safety gap
> 11.16 nF EMMC
> .25" Cu tubing .4" spacing, 15 total turns, flat pancake
> 16" of 22AWG on 4" PVC
> 
> My previous toroid was aluminum ducting, 4" diameter, 16"
> center-to-center.  With this, coil tuned at about 7.2 turns and I got
> about 2' or a little of output.  No problems with downward strikes at
> all, and no racing sparks.  I just made and tried out a 6" diameter, 18"
> center-to-center toroid instead.  I tried retuning at 9 turns and got
> massive racing sparks.  I even raised the toroid about 3" more than the
> old one and still the same.  Where am I screwing up?

I would say that the larger ROC of your new terminal isn't allowing a 
secondary discharge to start at a low enough voltage to prevent the 
flashover.

Regards,
Malcolm
 
> TIA
> 
> -Stan
> 
> 

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