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Re: multi segment single layer



Hi Richard,
              I saw the picture of Iannini's coil too and wondered 
about that. My mind immediately went to the folded resonator idea
you told us about awhile back. Could it possibly make sense having 
that many winding reversals though? I suppose I should have said 
"Cox's coil". Is there any evidence he has wound other resonators 
that way?

Malcolm

> Secondly, we spoke about something that has been puzzling me. I draw 
> your attention to the front cover of the catalogue published by 
> Information Unlimited, Amherst, New Hampshire USA. It is run by Robert 
> Iannini and supplies lots of kits including at least three TCs (TC3,4 
> and 5) as well as various appropriate components.
> 
> The front cover shows what appears to be a good performer in the shape 
> of a 2 coil TC: the primary looks to be quite small in diameter, and 
> maybe Cu ribbon or strip etc. The interesting feature for me is that the 
> secondary appears to be wound in a number of sections. The photograph 
> (which also turns up on the front of R Iannini's book, "Build Your Own 
> Space Age Laser etc. etc.") shows a cylindrical secondary of typical 
> proportions, wound in half a dozen sections of relatively closewound 
> turns, each separated from the next by a couple of inches. It may be 
> that this is merely black tape, holding the windings in place, but I 
> think it is something else.
> 
> The picture isn't overly clear. What does anyone think?
> 
> Incidentally, the photo credit on older catalogues was given to someone 
> in Texas (first name Dan) but the latest attributes the TC to Durlin Cox 
> of Resonance research, Baraboo, WI.