By definition it was the practice used by qualified engineers.
It is still common practice in bandpass filters by a new generation of
qualified engineers.
Carl
KM1H
----- Original Message -----
From: "Jim Brown" <jim@audiosystemsgroup.com>
To: <amps@contesting.com>
Sent: Wednesday, October 28, 2009 2:11 PM
Subject: Re: [Amps] IC-2KL 80m toroid value
> On Wed, 28 Oct 2009 12:48:29 -0400, Carl wrote:
>
>>bandpass filters which by definition are usually powdered iron.
>
> Perhaps by "common practice" at the time a particular product was
> built, but not "by definition."
>
> 73,
>
> Jim K9YC
>
>
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