[Elecraft] [KX3] A Comparative Performance Assessment (of Aftermarket KX3 Heatsinks)

[Dennis Griffin]

Hi Gary,

I find it curious that there was no mention in Adrian's report of what surface coating or surface finishing process the tested heat sinks had been subjected to. Last I knew, Fred is using powder coat on his newly designed higher cost heat sink, with the lower cost version having an as machined finish, with no further processing. I believe the PAE Kx31 heat sinks are now hard anodized, and I don't know how the KB8UHN units are finished. Can you please comment on this, since the type of surface finishing can play a role in the efficiency of heat transfer of a heat sink? I'm also curious if Fred's lower cost version is still the original size, with less radiating surface area than the newer one.

73 de Dennis KD7CAC
Scottsdale, AZ


> Subject: RE: [Elecraft] [KX3] A Comparative Performance Assessment (of
> Aftermarket KX3 Heatsinks)
> 
> P.S.  I deleted several comments from my Reflector post before sending it
> (for the sake of brevity), including ...