One of the ham magazines, either CQ or QST (but I'm pretty sure it was CQ) had a good article with photos a month or three ago on how to make your own air wound coils, including how to fabricate the
I always figured if it had spacers, like the plastic strips in "Air dux" it wasn't really "air wound", but aside from that technicality spacing "air wound coils" from relatively small wire to large t
The article was in CQ a couple of months back. It was a two parter, but you can go directly to the author's web site and download the entire thing. http://www.ad5x.com/articles.htm About half way dow
It turns out the article I mentioned was in two parts in the May and June 2008 issues of CQ. It is "Build Your Own Air-Wound Coils" by Phil Salas AD5X and is in the Weekender column in those two issu