Like all things too good to be true, this posting about the KPA500 is a bit unbelievable. Like cars, YMMV.
My experience with the KPA500 is much different. I suspect Jack only operates SSB. On CW expect the fan to come on after a few transmissions in under 30 seconds. Levels 1, 2 and sometimes 3 are often heard when doing some rag chewing at 500 W. The temperature stays below 70C as it should. RTTY is about the same with contest type operation. Expect the fan to operate as designed for these modes. It is not an absolutely quiet fan. I doubt Muffin type fans can be more quiet that what is used on the KPA500. One would have to go to a centrifugal fan like used on some of the really silent big amps to have it "pin drop" quiet. 73 de Brian/K3KO On 1/21/2012 23:19, Jack Berry wrote: > I'm with you Fred. I wish Elecraft made cars. They would read our minds, last > for 20 years and get 300 mpg! > > On Jan 21, 2012, at 4:03 PM, Fredric Serota<fser...@msn.com> wrote: > >> I don't usually say much on these lists. But I have just finished building >> my KPA500, and I have to say that in my almost 50 years of hamming, this is >> the most incredible piece of equipment I have ever had. Now, I am not >> related to Elecraft in any way. They don't even know who I am. But I am so >> impressed with the quality of components and the engineering and thought >> that went in to this little package that I may sell my other amp (name >> starts with the first letter of the Greek alphabet) and buy another. My >> other amp is so noisy, the fan runs so loud and the "QSK" relays >> clickity-clack" when sending CW. The KPA500 is as silent as can be, >> generates over 600 watts without any noise at all. The only time I can hear >> the fan is when I shut down the amplifier, it turns on to bleed the high >> voltage to make it safe if you want to poke inside. No other piece of >> equipment I have ever had does that. It follows the K3 without blinking. And >> the software gives you all the measurements, including temperature, that you >> would ever want to know. And the satisfaction of breaking a pile up with >> half the power I usually run, puts the fun back in operating. >> >> >> >> And all you guys can say is you don't like the color of the buttons. >> Unbelievable! >> >> >> >> Fred Serota, K3BHX >> >> ______________________________________________________________ >> 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 > ______________________________________________________________ > 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 > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1416 / Virus Database: 2109/4757 - Release Date: 01/21/12 > > ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1416 / Virus Database: 2109/4759 - Release Date: 01/22/12 ______________________________________________________________ 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
