Re: Primary cap

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Jeffrey,

Putting the spark gap across the NST is far better.  The NST looks much
like a short when the gap fires preventing most of the RF from getting to
the NST.  A paper on this is at:

http://hot-streamer-dot-com/TeslaCoils/MyPapers/primarycircuits/pricir.html

Cheers,

	Terry


At 08:08 AM 9/17/2001 -0600, you wrote:
>Hi,
>I've seen two configurations for the TC primary: 1) spark gap across the nst
>secondary with TC primary cap in series with TC primary to the right of SG,
>2) cap across nst secondary, followed by SG in series.  Is one better than
>the other.  I read that having the SG in parallel provides a safety gap at
>the same time.  Should the primary cap be matched to the nst secondary?
>Only if it's in parallel?  If in series, do you not worry about matching the
>nst secondary impedance?  One last question.  I've seen some stuff about LTR
>caps.  Are these used to keep from having 60Hz resonance with the nst?  Many
>concepts in need of tying together here.
>Thanks....
>
>JJ - slc
>
>