[Elecraft] KX2 heatsinks for CW-only ops?

[Julia Tuttle]

Hi Larry,

My understanding from the KX3 is:
1. It should be able to handle CW duty cycle under typical circumstances
without overheating.
2. If it does overheat, it is capable of self-preservation (foldback).
3. Additional heatsinking is necessary only to avoid foldback while
operating digital modes like FT8 that transmit at 100% duty cycle for 30
seconds straight.
4. All that said, if you don't mind the weight and size penalty, I'd get
one of them anyway, just for future flexibility.

If anyone knows about the KX2 in particular, please chime in!

73,

Julie


On Wed, Jul 16, 2025, 15:26 Larry Boekeloo via Elecraft <
elecraft at mailman.qth.net> wrote:

> I recently acquired a KX2 and use it on CW only.
>
> I noticed that it does get warm.  Are the aftermarket heat sinks needed?
>
> Larry KN8N
> Kalamazoo Michigan
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