[Elecraft] Cool your KX3 (fredem)

Phil Wheeler w7ox at socal.rr.com
Fri May 2 21:08:09 EDT 2014


Another vote of appreciation for Fred's heat sink. 
I've not done any tests as yet, but I looked at 
Dave's results and know it will meet my wants and 
needs for digital modes where duty cycle can be 
high. A classy design which looks and works well 
on my KX3.It meets all my criteria for adding 
cooling to the KX3:

  * Is cosmetically attractive (in the black
    finish); and if anything adds to the rig's
    appearance
  * Does not require any mods to the basic KX3
    (like drilling more holes or removing the
    speaker)
  * Requires no additional power supplies (to
    power a fan)
  * Is very easy to install
  * Allows the KX3 to be returned to its original
    state with a minimum of effort, should that
    need arise.

Same disclaimer as Dave!

Phil w7ox

On 5/2/14, 5:05 PM, Dave G. wrote:
> FWIW... I thought I'd mention this..
>
> I bought my KX3 heat sink from Fred Meier VE7FM a while ago.
> It is a very well machined precision product and fits beautifully,
> everything lined up perfectly - and it took me less than 10 minutes to
> install.
> I chose the micro bead blasted finish to increase the effective
> radiating area. (at least that's what I figured - I'm probably wrong!)
>
> It weighs about 8oz and I measured/calculated that it had a total
> dissipating area of just over 42 sq ins.
>
> The transaction was very easy and the delivery was very fast.
>
> I posted the list with my before and after results of temperatures
> reached for key-down continuous output transmissions at various power
> levels for a 5 minute duration at each power level into a dummy load.
>
> I had no temp induced shutdowns during my tests with that heat sink fitted..
> I've been using it for several months now with no problems.
>
> If you look in the pictures folder, under my callsign, you can see
> before and after images of it fitted to my KX3
> I also posted the before and after indicated temps to the list (a while back!)
>
> I do know that Fred is willing and able to ship worldwide from Canada,
> in fact,  to anywhere in the world that has PayPal or a bank draft.
> For my order I used PayPal.
>
> Usual Disclaimer: I have no financial or other interests in Fred's
> products other than being a very satisfied customer.
>
> 73 de
>
> Dave G.    KK7SS
> Richland, WA.



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