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Static Gaps vs Rotary Spark Gaps

Original poster: "Medina, Benjamin (UMR-Student)" <bamxbb@xxxxxxx>

Hello Folks. I originally was going for an ARSG (Asynchronous Rotary Spark Gap) but got a lot of responses from the TCML saying that it's not friendly with the NST, that it might fry it, and that I had to stay at 24o BPS (at least) to be safe. Therefore, I've changed plans and am thinking about using a SG (Static Gap).

Using a 15kV/30mA NST, in terms of efficiency and performance, how does a SG compare to a RSG? Is there any rule of thumb as to the # of gaps in series? Does a RSG guarantee longer sparks vs. a SG?

I am doing a school project, so we have budget and time constraints. Which of the following Static Gaps setups would you suggest I should go with? Or anything similar to images below. Bottom line, I want something that is reliable, easy to build, and efficient. Gary Lau suggested, http://www.hot-streamer.com/TeslaCoils/Misc/terrygap.jpg

Your comments and advice will be very much appreciated.

Thanks again,

Ben Medina
Rolla, MO.

http://hot-streamer.com/temp/BenMedina/f73d20a6.jpg (How is the connection done here? Essentially, where is the gap?)


(Maybe two parallel wood pieces. I am guessing I connect one end of the screw/bolt to one end of the secondary side of the NST and the other end of the other screw/bolt to the other end of the secondary side of the NST)?