[TowerTalk] Johnson Matchbox

[Bill N1eY]

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! 
>
> 73,
>