Re: 120 watts 3"

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: 120 watts 3"
From: Tesla List <tesla-at-stic-dot-net>
Date: Tue, 25 Nov 1997 20:48:26 -0600
Approved: tesla-at-stic-dot-net


From: 	Thornton, Russ #CSR2000[SMTP:ThorntoR-at-rc.pafb.af.mil]
Sent: 	Tuesday, November 25, 1997 6:22 AM
To: 	'Tesla discussion Group'
Subject: 	RE: 120 watts 3"

Hi Gary,
This sounds really neat.  What are you driving the coil with?

Russ Thornton
CSR 2040, 
Building 989, Rm.  A1-N20
Phone: (407) 494-6430 
Email: thorntor-at-rc.pafb.af.mil


>From: 	gweaver[SMTP:gweaver-at-earthlink-dot-net]
>Sent: 	Friday, November 21, 1997 11:30 PM
>To: 	Tesla-at-pupman-dot-com
>Subject: 	120 watts 3"
>
>I have been experementing with my smallest Tesla Coil.  It is 120 watts, 6K
>volts, 20 ma.  The secondary is 1.5" PVC pipe 6" long wound with #24 wire.
>The primary is 5 turns of #12 copper house wire with vinyl insulation close
>helix wound 3" diameter.  RQ gap .025 x 4. The output spark at the toroid is
>3.125" with a .0014 uf cap and a 2" doorknob as the toroid.  If I change the
>primary coil from 5 turns to 6 turns or to 4 turns I am off resonance
>frequency and the discharge spark gets shorter as expected about 1" long.
>If I change the toroid to a 6" diameter copper sphere or no toriod at all I
>still get a 3" discharge spark?  If I change the cap from .0014 to .0017
>or.0034 or .005 or .0064 or .01 uf I still get a 3" discharge spark?  Some
>of these changes makes the discharge spark get hotter or less hot but the 3"
>spark length does not change. I know the
>discharge spark will change if I change the number of turns of the primary
>but why won't it change when I change the cap or toroid?  Is it because it
>has a wide bandwidth and I haven't made a large enough change in the caps or
>toroid to make any difference?  humm.
>
>Gary
>
>
>
>