Advice on book:Theory and Design of Inductance Coils by Welsby

[bklein]

I see this book as a reference in several articles but it is very difficult to find.
(for instance a RFID appnote from Microchip that's pretty good - check it out)
I find that 1950, 1960, and possibly 1964 printings were done.
Any of you have this book and can comment on it? Worth spending >$70 on?

[Qiaozhi]

I see this book as a reference in several articles but it is very difficult to find.
(for instance a RFID appnote from Microchip that's pretty good - check it out)
I find that 1950, 1960, and possibly 1964 printings were done.
Any of you have this book and can comment on it? Worth spending >$70 on?

You can find a slightly cheaper copy here ->
http://www.abebooks.com/servlet/Sear...+Coils&x=0&y=0

[bklein]

Yes, but that is the 1950 edition. I'm wondering if the later ones are worth waiting/searching for...
Amazing so few books on the subject and so few copies of this book available....