I have never heard of a third party replacement heat sink for the K2/100.
I run a 4" (120mm) computer case fan that the specs say draws all of .15
amps, 1.8 watts @ 12V, at full speed.
It probably doesn't need to turn that fast to adequately cool the heat
sink so the current draw could be much less.
.15A or less current draw for a fan is insignificant, IMO, compared to
the 20A the rig draws on transmit.
If you want to save some battery turn the power down or decrease the
duty cycle.
On 9/28/2014 2:01 PM, Paul Metzger wrote:
My point is to avoid using fans to cool this radio so as not to aid in
depleting the batteries in this emergency radio go box, while creating
additional noise for the operator. I'm on the fence as whether to take this
K2/100 down to a machine shop and see what they can do to place a more adequate
heat sink on it, or instead just install my Yaesu FT100D.
In the past, I had purchased a 3 1/4" size fan to cool the K2/100, but it wasn't enough. I then purchased a second one and ran them both to keep the heat manageable. In doing so, the whine/noise that the fans had created had forced me to operate with headphones. This was a very annoying experience.
I think a larger heat sink will work for me, I simply need to find if any such
animal exists for this radio (lid configuration). Thus why I posted here.
Thank you all who have responded. I appreciate your time and knowledge shared.
My hope is to use my K2/100 in my emergency radio go box. I love the radio in
every other respect, except for the issue of it dissipating heat.
Paul Metzger - K6EH
-
--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441
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