Re: Three phase TC

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

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, July 14, 2001 6:40 AM
Subject: Re: Three phase TC


> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<jimlux-at-earthlink-dot-net>
>
>
It must have been late when I wrote this...
>
> Now that I've contemplated it since you proposed the idea.. I think that
> some combination of L's and C's should give you the right phasing.  Tuning
> might be a challenge (hah, it WILL be a challenge).  But, I've build
antenna
> tuning networks to generate precise phase and amplitude variations on
> separate radiators.  The problem will be the detuning effect of the
> streamers.. fortunately, the secondary is loosely coupled.  The trick will
> be coming up with a suitable network topology. It's fairly easy if you use
> resistors to get the phase shift.

And the resistors will give you a lot of undesired loss...

>
> http://home.earthlink-dot-net/radio/ has some links to equations for
calculating
> pi and T network values. You can probably start with an arbitrary network,
> calculate all the values, and then start combining reactances.
Alternately,
> set up some equations in Excel, and let the "solver" grind to find
> solutions.

The link should be: http://home.earthlink-dot-net/~jimlux/radio