It is too bad analog power supplies cannot be made as lightweight as switching supplies for similar current capability. As I mentioned a couple of days ago, I have two Astron switching supplies (with metering) and they generate what I call a "floating spur" that goes back and forth across my passband.
A 50 amp analog supply must weigh a ton...I have a 35 amp unit that I use with my Flex-5000 that is pretty hard on my back...fortunately, I do not have to move it around very often! When I get a chance, I am going to experiment with removing the connection to the meter backlighting on the Astron supplies (as suggested by Bill Bordy, NJ1H) to see if that makes enough difference to put them back into service. I just noticed that this thread is on the FlexEdge list rather than the Yahoo and regular FlexRadio lists...we should get back into discussions on the issues associated with alpha/beta software. Ed, K0KC ________________________________ From: William H. Fite <[email protected]> To: Jon Maguire <[email protected]> Cc: [email protected] Sent: Wed, June 30, 2010 1:07:26 PM Subject: Re: [FlexEdge] power supply I second the motion. I have an Astron VRM-50M linear that is as quiet as a mouse and an Samlex switcher that broadcasts enough hash to be heard on Mars. Bill On Tue, Jun 29, 2010 at 9:07 PM, Jon Maguire <[email protected]> wrote: > Leon, > > A lot has been written here about power supplies so I'll add my 2 coins. I > much prefer linear supplies over switching... hence I have 2 Astron RS-30M > and 3 RS-70M supplies. One of the 70Ms is running just the 5K, and one is > running my PR03 24x7x365 without so much as even a burp. I highly recommend > Astron linear supplies. > > 73... Jon W1MNK > > > On 6/29/2010 7:56 AM, Leon wrote: > >> I know I have seen this before, but cannot find it! What power supply are >> you using for the F5K? >> I have been using the MFJ-4035MV for over a year with mine and for over 10 >> years with other >> "knob" radios, but looks like it is going out. So, I may need a new one >> and was wonder what to get >> or just replace this one. Any suggestions? >> >> Leon, N5PU >> [email protected] >> >> >> This message was sent by unregistered version. Download free trial from >> http://www.mcommander.com/ >> >> This message was sent by unregistered version . Download free trial from >> http://www.mcommander.com/ >> >> >> _______________________________________________ >> Flexedge mailing list >> [email protected] >> http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz >> This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is >> used for posting topics related to SDR software development and >> experimentalist who are using alpha and beta versions of the software. >> >> >> >> > > > _______________________________________________ > Flexedge mailing list > [email protected] > http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz > This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used > for posting topics related to SDR software development and experimentalist > who are using alpha and beta versions of the software. > -- The proportions and relations of things are just as much facts as the things themselves. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using alpha and beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using alpha and beta versions of the software.
