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Re: [TCML] Toroid thickness effects (spark length )
Hello John,
Thanks for the data. It gives me a goal .
Right now, I am repackaging everything in what hopefully will be
an interesting finished form, and building a website for photos.
Best,
Alex P
**************************************************
Alex,
My TT-42 coil produces 42" sparks from a robust 12/30 NST. A regular
12/30 NST gives 38" sparks. To obtain this kind of efficiency requires
a 120 bps sync gap, or a 120 bps triggered gap. Also the capacitor
must be large enough. I use an 0.014uF cap. I use a 4" x 13" toroid.
As a test, I once installed a 6" x 24" toroid. Then the coil gave 44"
sparks.
The secondary is 4.2" dia by 19" tall.
_http://futuret.110mb.com_ (http://futuret.110mb.com)
Gary Lau's coil uses a 15/60 NST and produces 80" sparks using
a 120 bps sync gap. He uses a rather large capacitor and toroid.
His secondary is larger too.
In other tests I've obtained 58" to 62" sparks from a 4" coil.
Cheers,
John
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