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[AMPS] SB-220 Problem

To: <amps@contesting.com>
Subject: [AMPS] SB-220 Problem
From: 2@vc.net (measures)
Date: Fri, 5 Jan 2001 08:44:50 -0800
>My SB220 has started giving me just a little less than half of the output 
>I normally get on 10M.  Output on 20M and 15M seem to be unaffected.  I 
>normally get 600W output and only run the amplifier in the CW/Tune mode.  
>Twice I heard a popping sound on the left side of the amp which I took to 
>be the variable arching which it has not done for a while.  I have used it 
>successfully for two years with all of R. Measures mods installed.  I have 
>a brand new IC746 that the problem started with, but it does the same 
>thing with my old IC735.  Could I get some suggestions on where to start 
>looking for the problem?  Thank you. Pat..K8PC
>
Increase the Rp of the suppressors by increasing L-supp.  Adding a second 
suppressor is feasable with 3-500Zs.    See Fig. 26 on my Web site.  

end

-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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