Re: Pics (fwd)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Tesla List Moderator <mod1-at-poodle.pupman-dot-com>



---------- Forwarded message ----------
Date: Thu, 19 Sep 2002 17:47:37 +1200
From: Malcolm Watts <m.j.watts-at-massey.ac.nz>
To: Tesla list <tesla-at-pupman-dot-com>
Subject: Re: Pics

Hi Dan,

On 18 Sep 2002, at 18:20, Tesla list wrote:

> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>
> 
> Looking at your schematic, i think you might want to try reversing the
> positions of your spark gap and capacitor.  The capacitor should be in
> series with the NST while the spark gap should be in parallel.
> 
> Also, tabletop coils should inherently be small, right?  I would ditch the
> potential transformer and ballast set-up and just buy a small franceformer
> open frame transformer.  You can get a 4kV, 20mA new from any franceformer
> distributor for about $20.00 and after removing half the shunts, you can get
> about 38-40mA output current.   This would get rid of that bathroom sink
> ballast you got.  By the way, do you use your bathroom as both a toilet and
> an office (saw all those post it notes on the wall).  Plus, if you build
> yours using this transformer (MODEL 4020SE), you can partcipate in the
> tabletop coil challenge where the goal is to get the longest arc.  If your
> interested, I could send you the rules for this contest.

I'm interested. I've obtained 12" from an unmodified 5kV 30mA 
transformer. This was several years ago.

Regards,
malcolm

> Pictures of my tabletop coil can be seen at:
> 
> http://www.spacecatlighting-dot-com/teslacoil4.htm
> 
> Dan
> 
> 
> 
> 
> > Some pics of my table top unit with a new vacuum spark
> > gap and MMC
> > http://www.geocities-dot-com/teslinasite/tttc
> >
> > If you are interested see also a homemade Bonetti
> > machine:
> > http://www.geocities-dot-com/teslinasite/electrostaticB
> >
> > vasil
> >
> > _
> >
> >
> >
> >
> >
> >
> 
> 
> 
> 
>