Hello David (the original poster)
If your coil will handle it go for the bigger major diameter toroid like the
Green Monster has.
I did a comparision of a 34x8 and a 50x11 inch toroid a while back, using
the same coil, same settings (freq allowed for), same camera settings -
(swopped toroids and just retuned).
Results can be seen here:
https://www.youtube.com/watch?v=y6PTwVnb1uo
Regards
Phil Tuck
www.hvtesla.com
-----Original Message-----
From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of David
Sent: 12 December 2014 15:21
To: Tesla Coil Mailing List
Subject: Re: [TCML] Thought on top load connection
Hi David,
This may work ;-) The issue I have with my large pole pig fired coil is that
it already stands nearly 8 ft. tall and I am limited by the typical 8 ft.
vertical clearance for the storage of my beast. However, when I run it
(necessarily outdoors), the 12 ft. or so reach of the spark discharges
really make significant prevention of strike ring hits challenging, but the
large 56" diameter vs. the 40" diameter of the strike ring does at least
tend to keep the strike ring hits "within reason".
David (Rieben)
Sent from my iPhone
> On Dec 12, 2014, at 7:53 AM, David <zipo@xxxxxxxxxxx> wrote:
>
> I would like to minimize/reduce strikes to my primary by raising my
toroid. I've been thinking of an approach and wanted to run it by the group.
>
> I would like to raise the height of my toroid approx 6 or 9 or 12 inches
or so above the secondary to provide better standoff from the primary. To
add back e-field shielding of the top of the secondary and not introduce
eddy losses or excessive additional inductance, I was considering winding a
very wide spaced coil ,say 1/4 to 1/2 inch space wound for the length needed
to place on top of the secondary. The thinking being that this would raise
the height of the toroid as needed, minimize res freq change and minimize
eddy losses with the top load ( allowing magnetic field line to escape
between the wide space coils). Basicly this would be a glorified helical
connection to a raised top load. This "connection coil" would be the same
diameter as the secondary (7 inches diameter).
> As a side note I have been looking at drawings of Tesla's Wardencliff
design, and it begs the question how did he plan on eliminating breakout at
the top edge of that secondary coil?
>
> Anyway, Thanks Group
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla