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[Amps] issue with AL-1200 output

To: <>
Subject: [Amps] issue with AL-1200 output
From: "Jim Thomson" <>
Date: Fri, 23 Jun 2017 16:42:19 -0700
List-post: <>
Date: Fri, 23 Jun 2017 06:09:22 -0400
Subject: Re: [Amps] issue with AL-1200 output

<Steve, this sounds like an output padder C that has lost ESR and heats up  
<with power applied. Heat will cause the capacitance to change. Many 
<amplifiers  use large value capacitors which are known to develop this problem 
<time. If this is the problem, lowering the power output will take longer to 
<see  the power drop.
<Gerald K5GW

##  He did not say what band he tested on.   Any loading cap padder would be on 
the 160 + 80m bands. 
He might want to re-run the tests  on 40 + 20m..... if its fine on  40-10m, 
then its 99 % likely to be a padder
on the lower bands. 

Jim   VE7RF

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