Re: New to this...

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>


Tell us what size power transformer you plan to use and we will give you
some design info.  I suspect it's a neon sign transformer (NST) but not
sure.

In most cases you don't even calculate the 1/4 wavelength anymore.  You
determine sec coilform size (dia.) and then use a 4.5:1 height to dia.
ratio.  This will give you the correct winding length for your wire.  With
small xmfrs, 28 AWG wire works great.  You then divide the winding length by
1,400 turns (good amount to use on most coils) to determine wire dia.  From
a wire chart you find this wire dia. and then read off the wire AWG size.

A topload of 2-3 times the dia. of the sec coil works good.  You can use a
toroid or a Van de Graaff sphere depending on your wallet.

First coils are always a lot of fun.  The guys on this list call it "first
light".

Dr. Resonance

>
> What would this calculation be to find what frequency
> a certain amount of wire will resonate at (on my
> secondary)? I can't seem to find it anywhere. I'd like
> to know what size of top-load I need. Would I have to
> make my secondary first and hope I can create a
> top-load that will resonate the coil? Do you have to
> use an oscilloscope? I don't want to guess and check
> unless it's on paper. Any info (link?) would help -
> I'm learning the fundamentals.
>
>                            Thanks again,
>                               Tyler
>
>
>
>