sorry i dont see it , i read the first 15 pages with much attention and didnt see... Maybe re-download it and quote me since you know about where it is...
Well i assumed it was in the first 10 pages, i printed out the entire book and had each diagram on my wall, i had all text in a book in my hand. "I read the entire book". It is in there "some where." I have since taken all the papers off the wall and thrown the book away. It gets cluttered around here.
I took the time to read the book while walking around looking at all the diagrams on the wall several times. At one point he did say the secondary was bifilar wrapped, he may not have used the word "bifilar." I would have to sit back down and read the entire thing to find it.
"Just maybe i dreamed it" I cant be certain until i find it for myself again. Besides, even if he did use bifilar secondary, all this would mean is he doubled the amps and decreased the resistance to gain higher voltages, thats all it would mean.