I use two Astrons, an RS35M and a VS50M. Both have hum, but it's completely lost in the computer fan noise so I don't notice it at all.
Neither has a fan and both have run for 15 years with no problems. Jerry W3JJJ / AAR3HB ----- Original Message ----- From: Tim Taylor To: [email protected] Sent: Tuesday, June 21, 2011 10:54 AM Subject: [FlexEdge] O/T - Need Power Supply Suggestions (Please Read MyRequirments) Hello Flexers, I have searched the archives but I couldn't find what I was looking for. I need a good power supply for my 5000A. I am currently using a MFJ 4245MV. It does a good job at its primary function of providing power; however, after years of listening to the LOUD fan, I am looking for something that will be silent. I know that many recommend the linear Astron supplies (RM20, RM30, RM70 etc); however, I have no idea how quiet they are. My requirements: 1. Its operation is SILENT!!!! 2.Output voltage adjustable (at least between about 10 and 14 volts) 3. Provides 30 to 40 amps output continuous 4. Has no RF noise/hash within the Ham Bands I could probably live with a fan that was temperature controlled and only came on when the unit got hot. Any suggestions? 73, Tim K8XS _______________________________________________ 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 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 beta versions of the software.
