Re: Coil sensitive to primary tapping

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

Original poster: "Aaron Aab" <striker754-at-earthlink-dot-net> 

Yes the sparks are wimpy. I have 5 MOTs sitting here, thats why i have the
huge toroid. Im gonna wire 4 of them up and use one as a ballast possibly.

my NST is pretty wimpy 9kV/60mA, more power is a solution to this right?
That will build more voltage up in the toroid and let it break out easier
correct?

Aaron


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, January 23, 2004 3:49 PM
Subject: Re: Coil sensitive to primary tapping


 > Original poster: FutureT-at-aol-dot-com
 >
 > In a message dated 1/23/04 10:25:58 AM Eastern Standard Time,
 > tesla-at-pupman-dot-com writes:
 >
 > >Guys,
 > >
 > >My coil is extemely sensitive to the primary tap. It refuses to make any
 > >sparks if you move it off the last coil or so. It works best on the very
end
 > >of the last one.
 > >
 > >Currently it is a 9kV/60Ma, 15 turns, 30X6.5"secondary, 7x24" dryer duct
 > >toroid, 0.025uf/12kV capacitance
 > >
 > >Any ideas?
 > >
 > >Aaron
 > >
 >
 >
 > Aaron,
 >
 > Well how do you know you have enough primary turns?
 > Maybe you need another turn or two to get the best sparks.
 > Have you extended the turns using some scrap wire to test this?
 > You didn't mention the spark length.  Are they wimpy?
 > Also a smaller toroid would let you tune inward and let
 > the sparks break out more easily, etc.  I'm not saying
 > you need a smaller toroid though.
 >
 > As a test you can place a long metal rod over the top of the coil
 > as a breakout point to see if it can then break out at other
 > primary tap points.  This would tell you that the toroid size
 > is preventing breakout when the tuning is too far off, which is
 > to be expected if that's the case, etc.
 >
 > John
 >
 >