Re: Propagation velocity in long helical coils.

To: tesla-at-pupman-dot-com
Subject: Re: Propagation velocity in long helical coils.
From: Terry Fritz <twftesla-at-uswest-dot-net>
Date: Mon, 15 May 2000 19:16:07 -0600
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme
In-Reply-To: <004e01bfbe91$7fb70760$03000004-at-oemcomputer>

Hi Bob,

	Sorry about not getting back to you on all this.  With the holiday, list
problems, work....  I just didn't get to it.

I guess the equation you found for Fo from your May 10th post is:

Fo = 1 / (4 x SQRT (L x C))

Where C is the "true" capcitance of the coil with the top and bottom
shorted (no resonance).  Is this correct?  I will set up a ground plane and
try to do this test in a large room to get an accurate true C measurment.
I am still doing some left over poly cap work tonight but I'll try this on
my two well known coils ASAP!

Cheers,

	Terry

At 01:16 PM 05/15/2000 -0400, you wrote:
>Hi all,
>
>I am surprised that nobody has checked  my equation against a coil and then
>posted the results, not even Terry?
>
>I am still  trying to do some analysis on the end effects to get an estimate
>but not much success.
>
>Regards Bob.
>
>
>
>
>
>