Hi, my experience is that switching power supplies are much better than their reputation as reflected here in the comments of the last days. I am using switching supplies within my self-assembled computer (build-in in the housing SilvStone LC11), at 13.8V for the F5k (Manson SPS9600), in addition two ones in my homemade MosFET linear one at 12V and another one at 48V (SCP-1k2-48) the latter delivering 1.2 kW output. So far I don't see any problems. A quarter century ago with the technology of these days I had problems and found birdies every 40 kHz even within the 2 m band and replaced the switching supply of the transverter by an analog controlled one, however, with modern ones, ... see before. Hans, DL2MDQ.
Lee Mushel schrieb: > Well, guys, I try to use reflector comments to give me a heads up whenever > possible. As soon as I placed my order for the 5000A last spring I > immediately started to think about the power supply and had decided that I > wanted an old fashioned supply. After some time I found a Hewlett Packard > 6200 series on eBay with remote sensing, good regulation and ripple specs > and I suspected a monster transformer and capacitor bank. I was right! > After the recent comments I ordered a one farad capacitor which arrived last > week, went into the junk box and found a mercury wetted contactor to short > out the start up resistor so I can turn things off and on without too much > worry. So now I can sit back and read the current comments without worry! > Cooling and shielding are other areas that I've tried to pay close attention > to. I won't comment on those, though, since Gerald, Eric and Tim might get > excited! The XYL calls this sort of thing Another Of Your Overdone > Projects. > > 73 > > Lee K9WRU > ----- Original Message ----- > From: "Neal Campbell" <[EMAIL PROTECTED]> > To: "FireBrick" <[EMAIL PROTECTED]> > Cc: "FlexRadio List" <flexradio@flex-radio.biz> > Sent: Sunday, July 20, 2008 7:50 AM > Subject: Re: [Flexradio] New PS. Switching or not? > > > >>I would definitely go non-switching but just a reminder: >>You are already using switching power supply in your shack and often >>it is of the cheapest quality known to man: in you PC. I honestly >>believe that people should think putting in a high-quality pc power >>supply. Unfortunately a non-switching pc ps doesn't exist (to my >>knowledge). >> >>Neal >> >>On Sun, Jul 20, 2008 at 6:51 AM, FireBrick <[EMAIL PROTECTED]> wrote: >> >>>I used my Astron 50amp big heavy power supply. >>>It may be overkill but it's solid. >>>good luck >>>I prefer non switching. >>>But QST had a review of switching ps a while back. >>>You should be able to find that review online. >>>I think you want the supply that creates the least noise. Some > > switching supplies are much better than others. > >>>good luck >>> >>> >>>On 7/20/2008 3:44:12 AM, Ruben Navarro Huedo ([EMAIL PROTECTED]) > > wrote: > >>>>Hello friends: >>>>I have to buy a new power supply for my 5000a. >>>>What is your advice? >>>>Switching or not switching ps ? >>>> >>>>TNX a lot. >>>>-- >>>>Rubén Navarro Huedo >>>>http://www.palotes.com >>>> >>>>_______________________________________________ >>>>FlexRadio Systems Mailing List >>>>FlexRadio@flex-radio.biz >>>>http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >>>>Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >>>>Knowledge Base: http://kb.flex-radio.com/ Homepage: > > http://www.flex-radio. > >>>>com/ >>> >>>_______________________________________________ >>>FlexRadio Systems Mailing List >>>FlexRadio@flex-radio.biz >>>http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >>>Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >>>Knowledge Base: http://kb.flex-radio.com/ Homepage: > > http://www.flex-radio.com/ > >>> >> >> >>-- >>Neal Campbell >>Abroham Neal Software >>Programming Services for Windows, OS X and Linux >>(540) 242 0911 >>--------------------------------------------------------------------- >>Try Spot for OS X, the intelligent DXCluster Client at >>www.abrohamnealsoftware.com - introduction priced at $10.99 >>------------------------------------------------- >>For a great dog book, visit www.abrohamneal.com >>------------------------------------------------- >>See the FlexRadio Systems Flex-5000a in >>action at www.flex-videos.com >> >>_______________________________________________ >>FlexRadio Systems Mailing List >>FlexRadio@flex-radio.biz >>http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >>Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >>Knowledge Base: http://kb.flex-radio.com/ Homepage: > > http://www.flex-radio.com/ > >> >> > > > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kb.flex-radio.com/ Homepage: > http://www.flex-radio.com/ > > > . > _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
