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Re: [Amps] 3rd Order IMD

To: dhallam@rapidsys.com
Subject: Re: [Amps] 3rd Order IMD
From: R.Measures <r@somis.org>
Date: Thu, 22 Sep 2005 07:06:14 -0700
List-post: <mailto:amps@contesting.com>
On Sep 21, 2005, at 2:45 PM, David C. Hallam wrote:

> Looking through Bill Orr's handbook, I found a table that gives the 3rd
> order IMD for 6146's in AB1 as about -24/25 db.

Because 6146 amps typically use  RF-NFB, the total IMD is c. –38db from 
pep.

> If that's the case, how can
> your signal be any cleaner than that as long as the IMD of your 
> amplifier
> tube is no worse than that?
>
> David C. Hallam
> KC2JD
>
>
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>
>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org

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