Re: [TCML] Video of my coil

[Brandon Garretson <garretsontech@xxxxxxxxx>]

Hey John,
Thank you for the kind words!
Thats just it, it is in tune, it sounds good and runs smooth, but I dont get
the feeling the streamers are as long as they could be.
Its fed by a single 12/60 nst and the MMC is 5 x 15 CD caps for a total of
33.33nf, 35 being ideal.
I currently have two toroids on it, a 3x12 spun and directly on top of that
a 4x20 made from ducting smoothed with plaster, clear-coated and covered
with aluminum tape.
The coupling is pretty tight too, the lower sec windings are about 1/4"
below the first pri turn.
Nothing in the system gets too hot or arcs over.
I suppose it could be environmental.


On Fri, Jul 9, 2010 at 4:42 PM, <futuret@xxxxxxx> wrote:

> Brandon,
>
> Looking good.  Good spark action and good sound,  nice innovative coil
> design appearance.
>
> Regarding spark lengths, I think you said you're using a 4.5" x 18" toroid?
>  This
> should be able to give at least 60" sparks or so I would think.  Have you
> measured
> the spark length by placing a metal object to the side of the coil and
> letting the
> spark hit it?  (a metal step-ladder works well for this.)  I forget what
> size power supply
> you're using....?  (15/60 NST, or multiple NST's?)
>
> John
>
>
>
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