The book is called "TEN TEC The first 40 years 1968 - 2008" .....By N.L. Williams NR4RR. If you go up to the Ten Tec site _www.TENTEC.Com_ (http://www.TENTEC.Com) or better yet, _www.ARRL.org/catalog/ten_ (http://www.ARRL.org/catalog/ten) tec. I'm sure you can get it at any library but its nice to have it in your library 73 Bud