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Re: Need some help in finishing coil...quench caps and
Subject: Re: Need some help in finishing coil...quench caps and
Date: Wed, 21 May 1997 15:32:54 -0600
From: "DR.RESONANCE" <DR.RESONANCE-at-next-wave-dot-net>
To: "Tesla List" <tesla-at-pupman-dot-com>
To: Shawn Collins
Would suggest using a standard 12 KV neon sign transformer for power.
Easy
to find used for around $10 or perhaps even free in you can convince the
shop manager of the sincerity of your project.
A 60 ma. xmfr will match to a .01 MFD cap and a 30 ma. xmfr will match
to a
.005 MFD cap. The larger size will provide more output but requires a
larger cap that costs more --- catch 22 here.
You can construct some pi-would chokes with about 40 turns on each
pi-section. Use 3-4 sections and cut with a lathe (school shop teacher
can
help here) into a wood dowel or 1 1/2 dia. piece of white delrin
plastic.
Use one of each in series with each output bushing.
More on this if you want to pick up the free "Tesla Oscillator Design
Guide" from Resonance Research Inc, E11870 Shadyland Rd., Baraboo, WI
53913. Send a $3.00 stamp -- no cash or checks please.
Forget the 60 KV -- you don't need it and it will cause you more
headaches
than you need.
DR.RESONANCE-at-next-wave-dot-net
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-poodle.pupman-dot-com
> Subject: Need some help in finishing coil...quench caps and choke...
> Date: Tuesday,May 20,1997 11:37 PM
>
> Subject: Need some help in finishing coil...quench caps and choke...
> Date: Tue, 20 May 1997 19:49:28 -0500
> From: Shawn Collins <rubidium-at-worldnet.att-dot-net>
> To: tesla-at-pupman-dot-com
>
>
> I decided to build a tesla coil for my senior project and, with the end
> of
> the year coming up, am getting nervous about completing it in time. I
> need
> some help in finding .0006 to .001 caps to put on each side of the neon
> secondary to ground. I also need advise on building the protection
> chokes
> that go between the neon and the primary circuit. I am not sure how high
> the
> voltage should be on the caps, as some sources say 60-70kV.
>
> My secondary is 6" and 25" long with #22 wire.
> My primary is 15 turns of 3/8" tubing spaced 3/8"
> My neon is 15kV -at- 60mA
> My cap is a plate type made of 15 sections using aluminum foil and
> freezer
> zip-locks (cut open at both ends) and measures .01mfd.
> I expect it to operate at 167kHz with a 24" diameter, 4" AL flex tube
> torroid.
>
> Any help with caps and chokes is greatly appreciated. I am willing to
> buy
> used or solicite donations on the caps, as I am a high-school kid with
> limited resources (besides energy).
>
> Thanks for your help
>
> Shawn Collins
> rubidium-at-worldnet.att-dot-net