Re: Bi Polar coil

To: tesla-at-pupman-dot-com
Subject: Re: Bi Polar coil
From: Bert Hickman <bert.hickman-at-aquila-dot-com>
Date: Sat, 23 Nov 1996 10:14:50 -0800

Tesla List wrote:
> 
> >From Esondrmn-at-aol-dot-comFri Nov 22 20:31:51 1996
> Date: Fri, 22 Nov 1996 16:06:08 -0500
> From: Esondrmn-at-aol-dot-com
> To: tesla-at-pupman-dot-com
> Subject: Re: Bi Polar coil
> 
> In a message dated 96-11-18 22:40:17 EST, you write:
> 
> <<
>  Sorry I wasnt more specific on the coil I wanted to build. It is on Jimmy
>  Pauls home page in the Tesla gifs. I love the asthetics of this coil, I
> gotta
>  have a model like it on my shelf. Little table top model it seems. Ive got
> to
>  get a handle on coil dimesions then start it.   Stephen
> 
>   >>
> Stephen,
> 
> You want to build the secondary to whatever dimensions you want, then
> calculate its resonant frequency with whatever terminals you will use on the
> ends.  Then calculate the primary coil and capacitor using 1/2 of the
> secondary frequency.  It is basically two 1/4 helical resonators driven at
> the center with no ground refrence to the secondary.
> 
> Ed Sonderman


Sounds good Ed, except I think the primary coil/cap may need to be
calculated at 2X the secondary's (full-length) natural frequency.
However, I haven't built one of these yet so I don't know for sure...

Safe coilin' to ya!

-- Bert --