Re: Craig's SGTC (plus SSTC)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Liviu Vasiliu <teslina@xxxxxxxxx>

Hi Craig
Very nice setups! I would want to be so skillfull.
Nice site too! Keep the good work.

vasil
>
>

--- Tesla list <tesla@xxxxxxxxxx> wrote:

> Original poster: "Craig Dunn"
> <craig_d73@xxxxxxxxxxx>
>
> Hi,
>
> I've just started to get decent streamers from my
> first SGTC so I thought I
> would post the results.  The setup is:
>
> * 4 MOT Stack Power Supply (no oil)
> * Inductive Ballast (limits current draw to 10A).
> * 80nF MMC (was originally beer bottles).
> * Asynchronous Rotary Spark Gap
> * 110mm Diameter Secondary (1000 turns 0.55mm wire).
>
> At the moment I'm getting streamers which are over 1
> meter long.  I've only
> just started tuning the coil, so it's not performing
> at it's best yet, but
> I seem to get good results with around 2 turns on
> the primary.  My original
> calculations led me to believe that best results
> would be between 3 and 4
> turns on the primary, but this doesn't seem to be
> the case.
>
> Pictures of the coil and it's streamers can be found
> on my website
> (www.craigsarea.com/sgtc.html).  Scroll to the
> bottom of the webpage for
> streamer pictures.
>
> Previously I made a SSTC, which is also on my
> website
> (www.craigsarea.com/sstc.html).  I really like the
> robustness of spark gap
> coils.  An out of tune spark gap coil just results
> in poor performance,
> whereas an out of tune solid state coil often
> results in having to desolder
> the MOSFET's.  I also think the streamer behaviour
> of spark gap coils is
> more pleasing than solid state coils.
>
> Hope you like it,
>
> Craig.
>
>
>