[Elecraft] K3 COOLING VENTS

[David Wilburn]

I think another important point is the ambient temperature 
calibration.  If that is off (the K3 thinks 30c is 15c) the fans may 
not come in when they should.

Dave Wilburn
NM4M

K2ZLS wrote:
> 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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