Re: Induction Coils

[Terry Fritz <twftesla-at-uswest-dot-net>]

Hi Joshua,

	Not quite a Tesla coil subject but most of us started out with induction
coils...

	Lindsay Publications Inc. has the books you want for a great small price.

Design & Construction of Induction Coils - Construction details for
powerful lightning bolt generators. Sparks to 12"! Rare 1908 volume. 272 pp
No. 20404 ... $12.95 

40,000 Volt Induction Coil - Simple circuit drives common auto spark coil
to generate 40,000 volts. Great simple project. 24 page booklet. No. 844
... $4.95 

The first book by Collins has everything you would ever what to know about
building induction coils plus a whole lot more.  I don't know about the
second but probably well worth the $5.

http://www.lindsaybks-dot-com/
http://www.lindsaybks-dot-com/bks/light/index.html

Get their free cataolog too.  Filled with fun odd things!

Cheers,

	Terry


	

At 01:37 AM 8/20/00 -0400, you wrote:
>Hello list,
>
>I've been trying to think of something to do (high voltage, of course) that 
>doesn't completly empty my savings, and I came up with the idea of a small 
>induction coil. Not many parts, most of them are pretty cheap, pretty simple 
>and easy to make (i'm guessing...) but i've been thinking of a few problems 
>with this: first, I don't have an "excellent" idea of how one is put together 
>(I just saw a picture of one at PV Scientific Instruments site) but I think I 
>know the basics, second, I'm wondering if the thickness of the coil form's' 
>would affect the electromagnetic field (i'm planning on using two six-volt 
>lantern batteries wired in parallel, which probably wouldn't create much of a 
>field in the first place) and I don't know if the primary is wound around the 
>outside of the secondary, or vice-versa. I'll try to find a book or something 
>at the library ('try' being the operative word, my library doesn't have much 
>of a selection). One more thing i'm wondering about would be the proper 
>inductance. I usually use programs to do most of my work (lazy?) and I don't 
>really know the best factor for coupling. Any help? I'll post how it is 
>coming along as I acquire materials. (I hope I haven't left anything 
>important out...)
>
>So long,
>Joshua
>