[Elecraft] K3 COOLING VENTS

[K2ZLS]

Thanks to Brendan and all the responders:

  I have received several answers similar to yours regarding the heat 
sink effect.   But,  I already knew that.  The reason I'm bringing this 
up is that the concern for "hot spots" is already there.  After running 
the K3 hard, try powering down, remove power and the top cover.  Feel 
around the front side and you will notice the warmth of the display,  
the other boards and the KRX3 box, which has NO ventilation inside and 
is a heat sink by itself.  If you examine the air flow you can't help 
but see that the air movement DOESN'T GET to these areas. It's 
concentrated in the area around the AMP enclosure.  That's my point.  
The K3 CAN be improved if a little more attention is paid to draining 
this heat supply more efficiently instead of accepting the rise in heat 
as a GOOD thing.  I think improving the ventilation is the key here and 
maybe you are right,  my idea of cross ventilation may not be the best 
thing.  Maybe, instead of drawing ALL cooling air from the top opening,  
a side vent is installed to provide an additional source of cooling air 
that will find its own way to the output fans. The balance in the size 
of the openings is important to regulating the air flow.

73's   From   Tony

   


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