Re: Specs inquiry for all

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

Original poster: Brett Miller <brmtesla2-at-yahoo-dot-com> 

Luke,

When I first started construction of my 6" coil (about 5 years ago), I 
foolishly put together a huge toroid which was slated to sit atop the 
finished coil...lacking the experience to know in what order I should have 
been proceeding, I did not know that the toroid matching should be 
undertaken last.  This large toroid was over 36" in diameter with a 4" 
minor.  I have gotten the best results with the *much* smaller 4 x 17" 
dryer duct toroid atop an even smaller ACR (anti corona ring).  To this day 
I haven't gotten long or hot streamers from that huge toroid, even with a 
breakout point.  This is probably due to the fact that I am lacking 
sufficient turns in the primary to tune using that big toroid.
I am planning on redesigning my primary soon and using the modern pancake 
configuration, and will allow for around 20 turns or more for flexibility 
in research.  Then I will be able to test out the aforementioned.  Of 
course, one could easily model such a thing (maybe not the breakout, but 
definately the tuning) with a program such as JavaTC.

Here are my specs:

<http://hot-streamer-dot-com/brett/6inchcoil/6inch.txt>http://hot-streamer-dot-com/brett/6inchcoil/6inch.txt

I have often thought it peculiar that I use a smaller toroid than most 
folks, but still
manage decent power processing and long arcs.  I have noticed some 
exceptions however...enough to keep me from really worrying about it a 
whole lot.  It would be nice though, if someday we had software which could 
calculate a nice toroid for "big arcs" for a given coil spec.

-Brett

Tesla list <tesla-at-pupman-dot-com> wrote:
Original poster: "Luke"

I was wondering if anyone has built a system that works well and then
changed to a Single toroid for the top that was large enough that it
prevented break out when no break out point was provided. Or anyone that
has designed a system that tunes up and works good but need a break out
point to get their system to break out, again, using a single toroid as the
top load.

I am sure there are those out there that have done this.

Would such people be willing to respond with some specs of their systems?
<SNIP>