Well, aren't there two versions of the Johnson Matchbox? One was lower
power and the other was QRO.
Jim Brown wrote:
> 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!
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