[Elecraft] my KPA1500 and 160M

Adrian vk4tux at gmail.com
Wed Sep 2 20:52:13 EDT 2020


I say that your response is completely false and you are missing basic 
electricity facts. The high voltage becomes an issue when insulation 
breaks down, and then *current *starts

to flow through the fault path converting to emf & heat directly and via 
induced current resulting ;  P = E X I*. *Without the current the heat 
does not occur, it is basic physics, and

the heat is directly proportional to the current. Voltage can exist 
without current, but current cannot exist without voltage. Heat produced 
is directly proportional to the current whether

it be in the intentional circuit path, or fault path caused by high 
voltage insulation breakdown..

>
> In addition, your statement that only current in the balun circuit can 
> produce heat is completely false.  High voltage RF can create major 
> core heating due to dielectric losses in the ferrite core independent 
> of the magnitude of current flow in the tuning circuit. Several 
> discussions on the TowerTalk reflector have pointed this out over the 
> years for baluns and common mode chokes in ham radio applications.
>
> Dave   AB7E
>
>


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