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Re: [TowerTalk] Johnson Matchbox

To: "Towertalk" <>
Subject: Re: [TowerTalk] Johnson Matchbox
From: "Jim Brown" <>
Date: Sun, 23 Mar 2008 21:59:49 -0700
List-post: <">>
On Sun, 23 Mar 2008 21:32:43 -0700, Tom Osborne wrote:

>Ran 500 watts with the SB-200 and it didn't even get warm.  

Dissipation depends on the voltage and current in individual 
components, which in turn depends on the exact values of complex 
impedances being transformed, the frequency, and, of course, the 
power level. A capacitor that runs cool under one set of conditions 
may go up in smoke under a different set. 

Not to worry -- excessive dissipation is usually signalled by a 
special alarm that seasoned hams know well -- you begin to smell 
them getting warm! 


Jim K9YC


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