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Re: was : Its alive
In a message dated 5/15/99 5:55:45 PM Pacific Daylight Time, tesla-at-pupman-dot-com
writes:
> Greetings all,
> Have continued modifications to my coil and thought I would let you know
> where I am at now.
> The primary has 12 turns of 4 ga. wire and an inside dia. of 6 in. the
> spacing is 3/8 in. The capacitor is a .005 uf rolled poly and aluminum
> flashing. The secondary is 4 in. acrylic wound with 20 in. of 24 ga. wire.
> The current toroid is 4 in. x 16 in. aluminum duct covered with foil tape.
I
> am using a 15KV -at- 30 ma. NST. I am using one of Quicks gap designs using 13
> 1in. x 4 in. copper tubes with a 240 CFM fan. Using the above setup, I have
> the primary tapped at about 11 turns and am getting 12-14 in. sparks all
> around the toroid. The sparks start at about 35 v. into the NST. If I put
my
> 20 in. toroid on, I can get 24 in. sparks to a grounded object if I put a
> small nail taped to the toroid.
> I am still experimenting with tuning etc. but am pleased that it works
at
> all. The fact that it hasn't gone up in smoke was a releif. I am planning a
> larger coil in the future, but want to experiment with this one a bunch
more
> and get used to how things are supposed to work first.
> I would again like to thank all that have given ideas and suggestions to
> me during this project. A lot of the RF theory that I havn't used for years
> is coming back to me now.
> Any further comments on improvements wouls be appreciated.
>
> BTW. The rolled poly caps are really easy to make and are really
inexpensive
> to make. The one I made which is .005 uf and rated at 40 KV and cost less
> than $50.00 to make. With the materials left over, I can probably make 2 or
> 3 more.
> Thanx again
> George Stein
George,
Congratulations on your first sparks. It sounds like the coil is performing
well. Have fun.
Ed Sonderman