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Re: 120 watts 3"
From: gweaver[SMTP:gweaver-at-earthlink-dot-net]
Sent: Tuesday, November 25, 1997 10:18 PM
To: Tesla List
Subject: Re: 120 watts 3"
I am using a furnace ignition transformer as the power supply. 6K 20 ma.
Gary
At 08:48 PM 11/25/97 -0600, you wrote:
>
>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
>>
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