Re: Query on formula existence

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Bunny Killer" <bunikllr-at-bellsouth-dot-net> 

Hey Chris...

I havent seen any numbers that can dictate a specific sized toroid for a 
secondary since tuning depends more upon the primary/cap set to match what 
the secondary/toroid frequency is predisposed to... and the primary 
voltage......  the higher the primary voltage...   the minor chord dia can 
be increased..   I suppose you can fall back on the spherical numbers of a 
VanDeGraff generator for voltage break out.

but a general rule of thumb that I have found to work is that  the minor 
chord = the dia of the secondary and the overall outside dia of the toroid 
= the secondary winding length

example:   secondary is 4"X 20" actual wire wound ...    toroid is 4" top 
to bottom and outer dia = 20"   with a primary voltage of 12-15KV

see what the others have to say ...   I'll be watching the replys too...

Scot D





Tesla list wrote:

>Original poster: "Christopher 'CajunCoiler' Mayeux" <cajuncoiler-at-cox-dot-net>
>
>By any chance, would any of us happen to
>have a formula for calculating optimum
>toroid size for a given secondary size?
>Or something similar?
>--
>C.L. Mayeux, MsEE
>Owner, MSB Data Systems
>
>