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Registered Member #88
Joined: Thu Feb 09 2006, 02:37PM
Location: The Netherlands
Posts: 29
I hope to work on the toroid ASAP, in the meanwhile I constructed a base met out of acryllic as well, and it looks the part (see image below)
does anyone have experience using something like a rescue blanket as a ground plane? I am getting tired of taping my room floor down with aluminum foil ;).
Full image: (my god, including that with [img] tags messes up the screen...)
For a reasonably small size coil like yours, I think just a small rod hammered into the ground/grass would work well and you wouldn't need a grounding plane. I'm not sure if some rescue blankets are conductive or not, but if they are, no reason why you couldn't use it as a ground plane. One thing I would do is to definitely lower the toroid so that it's just above the top of the secondary winding. You're going to get severe corona at the top of the windings otherwise. Great looking build :)
Registered Member #88
Joined: Thu Feb 09 2006, 02:37PM
Location: The Netherlands
Posts: 29
For now I have made a sync gap indeed. As for the high toroid, the discs you see just below them can be taken away to lower the toroid, but since our TC is not that strong we noticed we could place the toroid rather high without getting corona.
We hope to do a simple test with a "bigger" toroid ind the current setup, but since I'm quit busy at the moment that will take up to a couple of weeks I am afraid. I am planning to also post all the design files of the acryllic online at some point.
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SGTC underperforming, suspecting sparkgap
