Another vote for the Astron Power Supplies they work well. Use the shortest run between the PS and radio you can and of a heavy gauge wire.
On Tuesday, June 11, 2019, 6:15:14 PM EDT, Bob Nielsen - N7XY <n...@n7xy.net> wrote: The Astrons are quiet and pretty reliable. I have had a RS20 since 1980 and the only problem I had was cured by replacing the regulator chip about 35 years ago. Bob, N7XY On 6/10/19 5:04 PM, Alan Corbeth wrote: > 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 n...@n7xy.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 hlyin...@yahoo.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 arch...@mail-archive.com