I have twelve RS-35M power supplies and all are completely quiet. ----- Original Message -----
From: "Alan Corbeth" <acorb...@gmail.com> To: "Bill" <w2...@nycap.rr.com> Cc: "Elecraft International Group" <elecraft@mailman.qth.net> Sent: Tuesday, June 11, 2019 12:04:02 AM Subject: Re: [Elecraft] Silent power supply for a K3s I have an Astron RS35 power Supply purchased in 1991. There was a period where I didn’t use it for ten years. Now it’s in use daily and so far it continues to be totally quiet. Alan K7FH > On Jun 10, 2019, at 3:56 AM, Bill <w2...@nycap.rr.com> wrote: > > I have several Power Werx switchers and prefer them for their size over the > heavy analog supplies. Fans are not a problem (actually, I hear nothing from > them at all) - IF you design your radio desk for proper equipment placement. > Place the power supply at your right hand - and you WILL hear noise, XFMR, > fan, etc. > > It is amazing what proper station design/construction can do for making > silence. Open faced metal shelving and bare desktops don't cut it. > > Just for grins, I put one of those Nanoxia fans in my IC-7300 and silenced it > completely. Worth the few dollars and effort. No temperature changes noted. > Hmmm - KPA500????? > > > ______________________________________________________________ > 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 acorb...@gmail.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 donov...@starpower.net ______________________________________________________________ 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
