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Re: [Amps] Advice needed for SS amp

To: Amps <amps@contesting.com>
Subject: Re: [Amps] Advice needed for SS amp
From: Bill Turner <dezrat1242@yahoo.com>
Date: Thu, 06 Jun 2013 17:51:00 -0700
List-post: <amps@contesting.com">mailto:amps@contesting.com>
ORIGINAL MESSAGE:          (may be snipped)

On Thu, 06 Jun 2013 22:53:15 +0100, G3XAQ wrote:

>I'm interested to know why a common mode choke type of balun is such a 
>bad idea, seeing as I am using one to couple the drains of my amplifier 
>to the harmonic filter. 

REPLY:

That is an interesting idea. One problem I see is there is no DC isolation
unless you add a capacitor in each side of the coax. In a small amp that is
easily doable but in a legal limit amp finding the right capacitor might be
hard. On the other hand as you say, building a broadband transformer with no
strange responses is hard too. 

Well worth investigating. 

73, Bill W6WRT
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