Behold the Mini SGTC!

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Behold the Mini SGTC!

Postby Speedy78 » Mon Dec 30, 2013 8:41 pm

As I await for my parts in the mail for my spark gap coil I decided to have some fun. To test out my winding jig I made I wound and lacquered this tiny secondary. Thought it looked neat so I made a quick topload for it. Thought that was way to cool and had to fire it up. First I made a capacitor but that shortly shorted out so I just used my MMC for my large coil thats in progress. Overkill yes. The coil actually performed better with the makeshift cap that I estimate to be around .0020uF. This MMC is .01764uF. I have all sorts of coupling issues and tuning issues but who cares. The damn thing stands 5 inches :)

Image

Here it is with the primary and aluminum foil cap.


Image

And a small video. Up too 1.5" arcs. May have to sit down on java and see what it can do. My cheap scope is no good at 1.1Mhz (Now 2.3MHz) :)

http://www.youtube.com/watch?v=B0jvT9hZ ... e=youtu.be
Last edited by Speedy78 on Wed Jan 15, 2014 10:26 am, edited 1 time in total.
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Re: Behold the Mini SGTC!

Postby Speedy78 » Mon Dec 30, 2013 10:10 pm

Last edited by Speedy78 on Wed Jan 15, 2014 10:27 am, edited 1 time in total.
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Re: Behold the Mini SGTC!

Postby Bayley » Wed Jan 15, 2014 2:37 am

cuuuuuute! What are the NST specs?

(also, the images in your first post are broken)
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Re: Behold the Mini SGTC!

Postby Speedy78 » Wed Jan 15, 2014 9:03 am

Yeah I reorganized my photobucket and all links are bad now :( its 650 turns of 30AWG. Stand about 6 inches tall. 2.3MHz measured on the scope.

7.5kV x 30mA (looking for a 15kV @ 60mA if you happen to have one)
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Re: Behold the Mini SGTC!

Postby ican » Wed Jan 15, 2014 10:32 am

Hehe... we made a new coil last night too... 6" tall x 1 5/8" x 38AWG secondary with a stainless toroid, helical primary, MMC and powered by a oneTesla driver board. 12" arcs, 9" streamers to air, and only draws 50A per IGBT. The resonant frequency was about 382kHz. We had it emulating a QCW with a 3000ns duty cycle, and I'm sorry I don't have a video of that because the swords were awesome... but then we blew the IGBTs. =( It was still fun as hell and damn that thing is cute. (we also had 2 smaller secondaries, but had actual work to do last night so we didn't test them.)

https://www.youtube.com/watch?feature=player_detailpage&v=27AOsxgWeTo

Time for the cuteness to show itself in the Tesla Coil community. lol

By the way... Awesome SGTC. =)
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Re: Behold the Mini SGTC!

Postby Speedy78 » Wed Jan 15, 2014 6:34 pm

That thing is so awesome! Yeah I wish mine was lower. Hard to push out much at my frequency. Had 30 AWG from another project. Wish I had 38 or even 40 for thid but honestly this was just a test wind on my jig to confirm it worked.
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