Hi Tim
This my opinion but I think the cap's are breaking down under load. I know they test
Good but that doesn't mean they are. Just my thoughts.
Alton
Sent from my iPad
> On Mar 13, 2014, at 1:54 PM, Tim Flood <tfloodrr@xxxxxxxxx> wrote:
>
> My old reliable coil's streamer length was gradually diminishing from white
> long sparks to shorter purple sparks and finally purple sparks for about
> ten seconds then no sparks. Additionally, racing arcs were beginning to
> occur.
>
> The MMC value checked out, all connections checked out, I cleaned and
> re-connected the dedicated RF ground, etc.
>
> The old design utilized two paralleled 9/60 NST, 3" dia. sec. and a 3"x12"
> toroid with a spark gap consisting of four fixed gaps in series.
>
> I suspected the transformers so I replaced these with the only other one I
> had, a 15/30 NST. I ran the new transformer, required capacitance of .008uf
> along with the existing secondary, spark gap and top load through JAVATC.
> Modifications were then made per the JAVA.
>
> The first light of the modified coil only produced a weak purple spark with
> a break-out point. Tuning only served to create racing arcs, with no
> improvement in performance.
>
> Now I suspect the secondary. So, I rewound and varnished the secondary.
> Same dismal performance as before. Now I'm about ready to loose it, to the
> point I'm explaining this all to my wife.
>
> The only thing I didn't touch was the spark gap and gap spacing. It was set
> for .030" for each of the four gaps and I made no adjustment when I
> switched transformers.
>
> Sorry for the long post, but I would really appreciate any ideas.
>
> Thank you,
>
> Tim Flood
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