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I Need some Help.
Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <TeraJoule-at-aol-dot-com>
~Hello
I have been working on my first coil for a few weeks now. I finished it
and turned it on. There was no discharge off of the Sphere on the secondary.
However there is a little arc (and I mean little) when I place a piece of metal
next to it (something like a screw driver). I've been wracking my brain to try
and fix this problem and I was wondering if one of you fine gentlemen would
help me. I think it is something with the frequency of my circuits. I believe
they are mismatched...
The Dimensions of my coil are as follows:
Secondary uses 30 gauge copper wire that is wrapped around a PVC pipe 7/8 in.
diameter and 8.25 inches tall. (about 700 turns) the sphere on top is .75
inches in diameter.
The transformer is 9000 V NST and 30 mA. It's rated at 120 V.
The capacitor has 17 sheets of 5.5 in. x 6 in. separated by .1 in. window pain
glass. (I don't know the dielectric value.) If it makes any difference, only
4 inches of the foil overlaps for each of the plates ( a 6 inch x 4 inch plate)
The spark gap is non-rotary and can be adjusted to any distance it needs to be
at.
The primary is helical and is basically 5 turns of wire. 3.5 in. in diameter,
spaced 1 inch from eachother. (I would be most willing to change this or the
capacitor.)
I would be forever grateful if someone could help me work out the flaws in this
design. Thank you very much for all of your time.
Sincerely,
Alex