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RE: tweaking

Thanks John
 I'll try running from less transformers as you suggest.
My spark gaps are enclosed in a case, with a centrifugal blower forcing air
through the case, but it's not so much a blast. I'm wondering whether to
augment this draught with four seperate narrow air ducts blowing directly
through each spark gap. It's certainly pretty spectacular, even if it's
off-tune !
If I CAN beef up the output, I'm going to try shooting an arc down an ultra-
violet beam, but I'm worried about the juice going the wrong way up the beam
and blowing the laser.
The over-coupling is easily dealt with, hopefully, by opening up the
primary, from
a cylindrical to an inverse cone shape, though I presume it will need
retuning again.

					Cheers
							Richard.

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Monday, July 31, 2000 8:02 PM
To: tesla-at-pupman-dot-com
Subject: Re: tweaking


Original poster: FutureT-at-aol-dot-com

In a message dated 7/31/00 11:21:43 AM Pacific Daylight Time,
tesla-at-pupman-dot-com writes:

> top few windings of the secondary. (White, with a bluish tinge).
>  In order to improve the output, should I remove a few windings from the
>  top of the secondary ? Will this stop the wasted leakage from coming from
>  top windings and get all the power into the topload ?
>  If I adjust the tapping from the primary coil, it doesn't seem change the
>  output,
>  even with half-a-turn of adjusting ! My RF ground is a 5 ft steel rod
>  hammered
>  down to almost ground level in sandy soil, watered with a hosepipe,
>  connected
>  to the system with car jumper cable, and clips.
>  Any ideas for getting that bit more power ?
>                       Richard Barton.

Richard,

That's a lot of power for a small coil, so it should give much
longer sparks.  Maybe it's not really tuned properly?  You could
try an air blast across the gap.  With that much power the gap is
probably
power arcing which can destroy the spark length.  You could try
just one NST, and it might work better, depending on the cap size.

Cheers,
John Freau