From the Elecraft site, "KX3 Heatsink Upgrade Kit. Started shipping with S/N 7292 for kits, S/N 7255 for factory assembled. $39.95”
http://www.elecraft.com/order_form_parts.htm#kx3 Upgrade instructions are here: http://www.elecraft.com/manual/E740254%20KX3HSMDKT%20Heat%20Sink%20Installation%20rev%20A.pdf wunder K6WRU Walter Underwood CM87wj KX3 #2985 http://observer.wunderwood.org/ (my blog) > On Aug 4, 2017, at 4:47 PM, David Haines <dhai...@bates.edu> wrote: > > Wayne. What serial number did you first install the new heat sink on the KX3? > > 73, > David > KC1DNY > > On 8/4/2017 7:42 PM, Wayne Burdick wrote: >> David, >> >> The new heat sink roughly doubled key-down time in our lab tests. I’d >> suggest you try it as-is before investing in a third-party heat sink. I use >> RTTY at full power on my KX3 with just the new stock heat sink and have >> never had an issue. >> >> 73, >> Wayne >> N6KR >> >> >>> On Aug 4, 2017, at 2:08 PM, k1...@k1szo.com wrote: >>> >>> Hi Jim, >>> >>> I recently purchased my KX3 and intend on doing a lot of digital modes. I >>> looked into 3rd party heatsinks, but was notified that Elecraft uses a new >>> improved heatsink that wraps around the bottom of the KX3. >>> >>> So my question to you is, do you have the newer KX3 Elecraft heatsink or >>> the older model? I was going to work mine first to see how hot it gets >>> before making a move if the newer heatsink is acceptable. I can't find >>> any reviews of it. >>> >>> I will definitely be watching this thread to figure out if I too want to >>> purchase the 3rd party Pro Audio Engineering KX32 Ultimate Heatsink as a >>> replacement. >>> >>> Regards, >>> David ~ K1SZO >>> >>> On 2017-08-04 14:10, Jim Ruff via Elecraft wrote: >>>> I've been doing a lot of FT-8 using my KX3 and my KXPA100 at 20 watts, >>>> and have noticed that the KX3 is heating up quite a bit and is almost >>>> hot to the touch. The KXPA100, while warm, appears to be okay. >>>> Should I consider purchasing a heat sink for the the KX3? If so, what >>>> products in your opinion are the best? >>>> Thanks,JimW7JHR >>>> Sent from Yahoo Mail. Get the app >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft@mailman.qth.net >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to k1...@k1szo.com >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to n...@elecraft.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to dhai...@bates.edu > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wun...@wunderwood.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
