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Re: [Amps] solid-state amp "suckout"

To: <amps@contesting.com>
Subject: Re: [Amps] solid-state amp "suckout"
From: "Tom W8JI" <w8ji@w8ji.com>
Date: Thu, 10 Aug 2006 19:12:12 -0400
List-post: <mailto:amps@contesting.com>
> Perhaps "full drive" is actually overdrive?


I thought the same thing.

The problem is the load impedance presented by the 
transformer is always frequency dependent.  If it goes 
through a peak at a certain frequency, the PA can saturate 
easier. If the impedance goes through a dip at the 
collectors on a certain frequency it can lose gain.

I'd try playing with a couple silver mica caps across the 
transformer and see if the gain or power can't  be restored 
at the problem frequency.

73 Tom 


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