Bill....
Cebik writes very extensively on these matters. Much of his work can be
found on the web. You will find just what you want, and many practical
designs, in his work. I suggest you look into his stuff first of all.
----- Original Message -----
From: "Bill Ames" <billa@aob.com>
To: <geraldj@storm.weather.net>; "'Discussion of Ten-Tec Equipment'"
<tentec@contesting.com>
Sent: Wednesday, May 07, 2008 11:41 AM
Subject: Re: [TenTec] Lowest loss matching an antenna for my Argonaut 509
> Then the question would be, if I selected the right materials (torrid and
> wire) and a proper design (number of turns, etc.) then would this be the
> least loss matching device? If yes, what material and design would be
best?
>
> Bill
>
> KB1LG
>
> -----Original Message-----
> From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
> On Behalf Of Dr. Gerald N. Johnson
> Sent: Wednesday, May 07, 2008 11:31 AM
> To: tentec@contesting.com
> Subject: Re: [TenTec] Lowest loss matching an antenna for my Argonaut 509
>
> On Wed, 2008-05-07 at 11:15 -0400, Bill Ames wrote:
> > Would the problem with the torrid be that the core might saturate and
that
> > is where the loss would come from?
> >
> > Bill
> > KB1LG
> >
> Ferrite always has some loss. Its the trade off between high
> permeability (and hence compact transformer or balun) and loss. Driven
> to saturation, the loss (and harmonic distortion) increases very much.
> For a given permeability, cores from different makers will have
> different losses and thresholds of saturation.
>
> 73, Jerry, K0CQ
>
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