On 12/27/15 7:02 PM, Heather & Paul Novotny via Tesla wrote:
I think it was about 578kh. I can try a lower number of windings, but I'm kind of thinking maybe I need a breakout point or a smaller topload?
Your topload is fine.. You need a temporary breakout point to get things started. Lay something like a metal ruler (with a sharp point) across the toroid. or a long piece of stiff wire, or something like that.
Thoughts? -------------------------------------------- On Sun, 12/27/15, Brian Decosta <briandecosta38305@xxxxxxxxx> wrote: Subject: Re: [TCML] No topload output To: "Heather & Paul Novotny" <p_novotny@xxxxxxxxx>, "Tesla Coil Mailing List" <tesla@xxxxxxxxxx> Date: Sunday, December 27, 2015, 8:53 PM What are the resonant frequencies of the primary + tank cap and the resonant frequency of the secondary + top load as determined by JavaTC? The secondary plus top load should be about 10-20% higher resonant freq then the primary tank circuit to allow for capacitive loading of the secondary plus top load by the streamers. Hope this helps Brian Sent from my iPhone > On Dec 27, 2015, at 8:29 PM, Heather & Paul Novotny via Tesla <tesla@xxxxxxxxxx> wrote: > > Hi guys, > > I just tried my TC for the first time tonight after COUNTLESS hours of work on it. Unfortunately, I am getting no streamers from the topload. > > Here are the specs of my coil: > > Power Supply: 12,000 volts 30 mA NST > > Terry Filter > > Fan quenched static spark gap > > Primary Circuit: Bucket capacitor measured at .0145uF, 7 turns of .25" copper tubing ID=6.5" OD=14" winding spacing = .25" I tried tapping it at 4.4 turns, 3.4 turns, and 6.4 turns. > > Grounded Strike Rail > > Secondary Circuit: 3.5" pvc pipe coil form, ~875 windings of 24AWG enamel coated copper magnet wire - 18.5" of windings, topload toroid minDiam=4.25" majDiam=17" > > LV end of secondary coil goes to ground, HV end of secondary connected to the toroid > > Bottom edge of toroid is 3.25" higher than the top winding of the secondary coil. > > Primary windings go in the same direction as the secondary. Primary coil inside winding moves in a counter clockwise manner towards the outside end and the secondary starts at the lower side and winds in a counter clockwise direction as it goes up to the top. > > I tried a few different coupling positions too, I tried an 1/8" below the start of the secondary windings, right at the secondary windings, and 1/8" above the start of the secondary windings. > > Any help would be much appreciated! > > Here's one of my test runs: https://youtu.be/jQPxk-NqpT8 > _______________________________________________ > Tesla mailing list > Tesla@xxxxxxxxxx > http://www.pupman.com/mailman/listinfo/tesla _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla
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