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On Sun, Feb 17, 2019 at 10:21 PM Yurtle Turtle via Tesla <tesla@xxxxxxxxxx> wrote: > It's good to correct "fake news", to help newbies avoid making a coil > that will be disappointing at best, or possibly never work. Some of us have > been here since the 90s, yourself included, back when we used to get dozens > upon dozens of posts every day. Many of us shared our research and results, > helping to fine tune our understanding, reinforce good assumptions, and > dispel bad ones. > If you have been around that long, then maybe you remember Terry Fritz? He was the one who pointed out to me the ideal nature of the single turn primary. Here is a post <http://hotstreamer.deanostoybox.com/OLTC/index.htm> he wrote back in 2002, when I was more active on the list, and we used to correspond in private. Or maybe you remember the single turn primary <http://www.alansharp.co.uk/otlc.htm> work of Alan Sharp? Alan used parallel primaries, which is the same thing as a large-surfaced single tube or ribbon. OLTCs don't use high voltage transformers, they use high current "out of the wall" electricity. And as I was pointing out (which I learned from Tesla's writings), for a single turn primary coil to work, we need a flash of power so brief that the current is extremely high. High voltage is not as important to ringing a true Tesla coil as is an exceedingly brief, and exceedingly high, current (if the primary is a single turn.) The more turns you add to the primary, the more you transform the Tesla coil into an ordinary transformer, and then it really doesn't matter what you do. If you put a big enough transformer on it, you are going to make sparks. If you want to build Jacob's ladders and hybrid transformer/Tesla-coils, that's fine. There is nothing wrong with that. _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxxxxxx https://www.pupman.com/mailman/listinfo/tesla