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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