I'm using an Astron SS-30M with very satisfactory results. 73 Bob, K4TAX
Sent from my iPhone > On Jun 9, 2019, at 9:52 AM, Peter Dougherty <[email protected]> wrote: > > Hi all, > I would like to find a power supply to power the K3s that is completely > silent. I've owned an Astron RS-35M, which was great until it started > buzzing like crazy. I swapped that out for a Samlex SEC-1235M, and did the > fan mod to keep the fan on constantly at low speed. The problem here is that > when I'm running FT8 or RTTY for more than about a half hour, the fan goes > into high speed and stays there for an hour or more, long after the rig and > amp's fans have shut off. And because it's a tiny fan moving a lot of air, > it's incredibly loud. > > I'm looking for an RF-clean power supply (either linear or switching) that > can deliver 25A continuously without requiring a cooling fan of any kind. > All it's running is the K3s/P3 and a couple of boxes with less than 1A draw > each. The front panel meter on the Samlex is showing a tad over 20A when > transmitting 100W in FT8/RTTY. Any suggestions? Within reason, cost isn't a > major issue. > > > --------------------------------------------- > 73 and Good DX > Peter, W2IRT > > ______________________________________________________________ > 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]
