Astron is another power supply that runs on the "edge". People that use them at repeater sites on mountains derate them 50% plus so they do not have to run to the mountain and replace power supplies.
A RS-35M in a controlled environment will do the job for a K3. I added a "hard" crowbar circuit to my Astron. The overvoltage scheme they use is not as robost as a hard crowbar. Jim W6AIM -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike K2MK Sent: Thursday, October 29, 2015 6:06 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Which of these would make the best power supply for the K3(S)? Hi Peter, I bought the Astron RS-35M for my $4000 K3 in 2008. I've never turned it off and I've never even given it a second thought. No fan, no RF noise, just reliable DC. 73, Mike K2MK Peter Pauly wrote > I'm looking at the Meanwell power supplies because they are cheap and > seem to be well regarded. I've come up with these two choices, feel > free to give more suggestions of other models. I've seen talk on this > reflector of supplying more than 13.8V to the K3S so that's why I'm > looking at the 15V model. > > 12V Model: Meanwell NES-350-12 > Voltage range 10-13.5V > 29A > > > 15V Model: Meanwell NES-350-15 > Voltage range 13.5-18V > 23.2A > > > The 15 volt model would seem to be the obvious choice, except that it > doesn't supply the recommended 25 amps. The K3S manual says 22 amps > typical though. > > Is there another model Meanwell I should be looking at that has better > protection or filtering? > > I've already got an Astron switching power supply, the Meanwell would > be a second alternative. -- View this message in context: http://elecraft.365791.n2.nabble.com/Which-of-these-would-make-the-best-powe r-supply-for-the-K3-S-tp7609685p7609688.html Sent from the Elecraft mailing list archive at Nabble.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 jbol...@outlook.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
