Re: coil questions

• To: tesla-at-PUPMAN-dot-com
• Subject: Re: coil questions
• From: Stan <sdarling-at-columbus.rr-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Fri, 23 Jul 1999 08:03:00 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Terry, as always, thanks for the detailed reply.

> 
> Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
> 
> The gap is not the best but it should work "ok"...
> 

I know.  Once I get this thing tuned with that I'll move on to either
the RQ static or an RSG.

> I would put a wire or sharp needle point on the torroid.  This should show
> some sparks even if the voltage is really low.  Then try taps from 4 to 12
> turns in 1/2 turn increments.  You really should find some point where the
> sparks grow to a maximum and then recede again as you keep tapping more and
> more primary turns.
> 
> Put the gap across the neon.  When the gap conducts, it will short the neon
> and help protect it against the high frequencies of the primary circuit.  I
> would suggest a safety filter and safety gaps too...
> 

I found the RC filter on your web site.  What wattage resistors would
you recommend for a 15/60 NST?  You said you used 250W but that it was
overkill.  Where can I find 30KV caps?  I tried Digikey and couldn't
find anything.  Also, what about a filter on the 120V side of the neon?

> Your coil is really straight forward and there isn't much than can keep it
> from working.  I would be very sure all is wired up correctly.
> 

I've probably done something stupid.  I'm off to give it another whirl.

-Stan

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