Re: Another First Light! (fwd)

To: tesla-at-pupman-dot-com
Subject: Re: Another First Light! (fwd)
From: Tesla List <mod1-at-pupman-dot-com>
Date: Tue, 19 May 1998 21:47:13 -0600 (MDT)
Approved: mod1-at-pupman-dot-com


---------- Forwarded message ----------
Date: Tue, 19 May 1998 00:51:58 -0500
From: "Barton B. Anderson" <mopar-at-uswest-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Another First Light! (fwd)

Pat, Congrats!
Sound's like a pretty good system. Too bad about that 6" secondary. Keep us
informed when you rewind the 6". Kind of curious why you used #22 on the 4"
x 20" and #28 on the 6" x 22"? #28 seems a bit on the small side.
Anyway, great job!
Bart

Tesla List wrote:

> ---------- Forwarded message ----------
> Date: Mon, 18 May 1998 22:26:13 -0600
> From: "Patrick J. Gustafson" <gustafpj-at-uwec.edu>
> To: Tesla List <tesla-at-pupman-dot-com>
> Subject: Another First Light!
>
> Hello All:
>
> With schoolwork, and finals week here I haven't much time to work on my
> first coil, but I did nonetheless complete it and give it some initial
> runs. The specs are as follows:
>
> primary - flat pancake with .25" copper tubing (15 turns)
> power supply - (2) 15kV 30mA NST's paralleled
> chokes - 100 mH on each leg of the NST's
> spark gap - RQ type (6 section (.1" combined) plus adjustable brass
> gap(.225")) set at .325
> capacitor - .0125 micro farad rolled polyethylene (.062"), filled with
> transformer oil
> safety cap - .001 micro farad, filled with transformer oil
> safety gaps across the NST's and main cap
> twin variacs rated at 17 Amps
> toroid - 4" cross section x 25" diameter
> grounding - 8' x 1/2" dia copper ground rod
> secondary - see below
>
> I had a two layer 6"dia x 22" length secondary wound with #28 magnet
> wire, but I had a problem with the inner winding being shorted out
> somehow, so I replaced it with an alternate secondary that I had wound
> (4"dia x 20" with #22 magnet wire).  The tuning took quite awhile,
> beginning with zero spark length, and now properly tuned I'm pulling
> around the 30-35" mark (loud as %&*-at-)  Not bad for my first coil eh?
> And plus I'm using the lower inductance secondary.  Can't wait to
> re-wire the 6" and see what I get.
>
> Lynn, send me a message cause I can't find your email address.
>
> Patrick Gustafson, Ozone plentiful in Eau Claire, Wisconsin