I put mine in a closet away from the desk. Fans were probably near high at least half the weekend. Hoping the fans have long life bearings….
Ken K6MR From: W0MU Mike Fatchett<mailto:[email protected]> Sent: Sunday, January 8, 2017 6:38 PM To: [email protected]<mailto:[email protected]>; Elecraft Reflector<mailto:[email protected]> Subject: Re: [Elecraft] KPA-500 Running hot on 20m SWR is fine. I have the KAT500 and a SteppIR antenna so that was never an issue. The amp has plenty of clearance around it. It was rather warm in the shack. Too many computers LOL. The high speed fan is crazy loud even for me that has hearing issues. Maybe will will encase it in ice next time...Kidding! On 1/8/2017 6:10 PM, Don Wilhelm wrote: > Mike, > > The efficiency will very from band to band, and is also somewhat > dependent on the SWR it is working into. > I would not think it is a problem - that is what the high speed fan is > supposed to do, cool it with faster air, even if that is disconcerting. > > A lot depends on your transmit vs. receive time intervals may be. > There are a whole lot of dependencies. > > 73, > Don W3FPR > > On 1/8/2017 7:44 PM, W0MU Mike Fatchett wrote: >> I was running the RTTY contest this weekend and expected to see higher >> than normal temps but on 20m and maybe 15 the amp was running 65c and up >> where the highest speed fan would come on. Generally in RTTY I would up >> the normal fan a couple of notches and it would be fine. I was not >> pushing it for full output either as I was not serious in the test. >> ______________________________________________________________ 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]
