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Re: schematics.........



Your secondary should be at least 1 inch above the primary -- not below.  If
below the coil will be overcoupled and you will be splitting your energy
into two "side frequencies" that will be stealing energy from your
fundamental frequency.  You may also develop "racing sparks" up and down the
secondary if coupling is too tight.

Checking the coeff. of coupling is detailed in the Tesla Archives section.
It's a necessary step in obtaining the very best performance from a small to
medium size coil setup.

Regards,

Dr. Resonance


-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Sunday, February 20, 2000 7:54 PM
Subject: Re: schematics.........


>Original Poster: "Christopher Boden" <chrisboden-at-hotmail-dot-com>
>
>All specs are on our web site (www.geekgroup-dot-org) :)
>
>Sec wire guage is 22AWG
>Sec 1st turn is 1" below primary
>
>>Original Poster: "Barton B. Anderson" <tesla123-at-pacbell-dot-net>
>>
>> > Original Poster: "Christopher Boden" <chrisboden-at-hotmail-dot-com>
>> >
>>
>>Hi Chris,
>>
>>Fun to be close, isn't it!  Well, it's going to be difficult for anyone to
>>tell
>>you where to tap the primary at because the specs are good but still too
>>limited. What would help (for me)  in addition to what you sent is Ls wire
>>size
>>and gap between the secondary and primary. I did throw your numbers as
they
>>are
>>into my little hodge podge of calcs and used a wire size of 20 ga and a 2
>>inch
>>distance for sencondary to primary. The primary tune point is near 10.5
>>turns
>>which would be perfect for your 12 turn primary (the last thing you
>>probably
>>want to do is add more turns which is why it's nice to build a couple
turns
>>bigger than needed or to use a dummy primary to find the tune point prior
>>to
>>building a finished primary).
>>
>>I'm guessing you "could" achieve 30" streamers from the NST assuming all
>>the
>>other areas are set perfectly, but don't be dissappointed if their only
>>about
>>12" or so. Just to get it up and running without smoke is an acheivement.
>>There's always time to work on spark length.
>>
>>I'll let the other NST croud throw you a schematic. I run a pole pig.
>>Although
>>the schematics are identical as far as proper connections, they may be
able
>>to
>>add a few details for an NST that I could not.
>>
>>Good luck,
>>Bart
>>
>snip...
>
>