I have a later serial number with the improved heatsink and find it completely satisfactory for PSK31 in typical QSO use. I usually run about 8 watts and do monitor the final amplifier temperature via the screen display. It never gets anywhere near the shut-down level or "hot" to the touch. I do live in Seattle so the ambient temperature in the shack seldom exceeds 80F and is mostly around the 68F furnace setting and also the typical spring summer fall 60-75 daytime temperature here in the land of eternal rain 9 months of the year and drought with sunny mild temperatures for the other three.
Dave W7VM On Tue, Mar 21, 2017 at 4:50 AM, Jerry <[email protected]> wrote: > I bought a ProAudio heatsink for my KX# about 3 or 4 years ago and found > that since I could read and handle some relatively simple hand tools, > assembly was easy and straight forth. Using RTTY at full power, it got only > warm - made a nice ham warmer in the colder mountain areas. The price you > pay for ProAudio is well worth it. > > Best regards, > > Jerry, W1IE > > > -----Original Message----- > From: Elecraft [mailto:[email protected]] On Behalf Of > Howard > Hoyt > Sent: Tuesday, March 21, 2017 3:11 AM > To: [email protected] > Subject: Re: [Elecraft] KX3 heatsink question > > Hi Rich, > > The advantages of a real aftermarket heatsink (not the poorly designed > imports) is rapid thermal recovery after each transmit cycle and less heat > re-radiated into the rig. The import with the rounded fin root as well as > others have a less optimum volume to surface area ratio and stay much > hotter > between transmit cycles. Also a good heatsink will allow higher power > operation in temperatures we sometimes find ourselves when operating on > picnic tables and the like in the summer! > > (commercial content) We find most of our customers who are occasional > digital users are satisfied with the smaller of our two heatsinks, model > Kx31, but the JT mode enthusiasts, especially contesters are going for the > slightly larger Kx32 model. Much more info on our website. Just our > experience...YMMV > > Howie - WA4PSC > www.proaudioeng.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message > delivered to [email protected] > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
