The model number of an Astron PS is the PEAK supply current. An RS-35M is a 35A PEAK, 25A Continuous supply. The RS-20 is 20 peak, 16 continuous
http://www.astroncorp.com/showpage.asp?p=2 73 Gene K1NR On Tue, 19 Nov 2013 08:33:51 -0800 (PST) Hisashi T Fujinaka <[email protected]> wrote: > The only thing that bit me: Astron XX does not mean XX > amps. I have an > Astron 25M and I was trying to figure out why my K2/100 > would power off > on 15M at 100W when I finally figured out that that the > Astron 25 is a > 20 amp power supply and my K2 needed a bit more. It would > even fold > back the voltage. After more debugging (and lots of > bypass caps & > chokes and dummy loads and a brand new oscilloscope) and > I found that RF > in the shack could be part of the problem but just > swapping to an Astron > 35M was my fix. > > Unfortunately, the Astron puts out a lot of heat, and my > shack happens > to be in a room that gets pretty warm even with the A/C > on. So I changed > to a 25A switching power supply which unfortunately has a > fan. Now the > tradeoff is heat vs. fan. > > On Tue, 19 Nov 2013, Don Wilhelm wrote: > > > Bob, > > > > The old reliable Astron 35 is a very good linear supply > - I do not have the > > metered version, and mine sits quietly on the floor > under the desk, no need > > to look at meters there. > > > > I also have an Astron SS30 which does a great job at > the workbench. Again no > > need for meters, and even though a switcher, I have not > found any switching > > noise created in the ham bands. > > > > As backups, I have an MFJ 25 amp switching supply and > an Alinco 340M linear - > > the advantages of those supplies is that the output > voltage is front panel > > adjustable. No noticeable noise from the switcher and > the current is more > > than sufficient for the K3/100. > > > > If you have other accessories, you might want to look > at a 35 amp supply, but > > 20 or 25 amps is all that is needed for the K3. > > > > 73, > > Don W3FPR > > > > On 11/19/2013 9:35 AM, Robert Nobis wrote: > >> I m about ready to place an order for a K3 and P3, and > wonder if there are > >> recommendations on a reliable DC power supply for the > Elecraft 100-W > >> transceiver. > >> > >> 73, > >> > >> Bob - N7RJN > >> > >> > >> > ______________________________________________________________ > >> 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 > >> > > > > > ______________________________________________________________ > > 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 > > > > -- > Hisashi T Fujinaka - [email protected] > BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) > + $2.50 = latte > ______________________________________________________________ > 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 --------------------------------------------------------------------- Web mail provided by NuNet, Inc. The Premier National provider. http://www.nni.com/ ______________________________________________________________ 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
