[Elecraft] KXPA100 Thermal Fault

[K8JHR]

I did that on two of my radios, and built a simple clamp on bracket to 
mount them without modifying the original heat sink fins. Cost of my 
project was approx.  $7 for the fan, and $1.5 for some aluminum stock.

I was particular careful to select fans with clearly stated noise 
figures.  Not all vendors publish the noise figures, but those with less 
than 20 dBA are fairly quiet, and, as Don says, if you slow them down a 
bit, they will move a lot of air over time, and you will never hear 
them.  I can provide photos if anyone is interested in how I mounted mine.

---------------------- K8JHR  ---------------------



On 7/22/2014 7:04 PM, Don Wilhelm wrote:
> Salvage a 12 volt muffin fan from a defunct computer and put a resistor
> in series with it to slow it down.  Almost whisper quiet, but it can
> substantially increase the air flow over the heatsink and keep it cool.
> Cost, almost nothing.  But put a shield over it to keep fingers out of
> the blades.
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