Good morning Don. The PS suddenly died on me at our beach house in Long Beach. I had no equipment there and first assumed it was my K3. Brought the rig home to Portland and it worked fine. So, it was the supply, an Astron RS35A--couple years old. Anyway, checked the fuse, cleaned contacts etc and it was .8v at the terminals. . So, I replaced the voltage IC which I got from Mouser and used Deoxit on the the voltage adjustment pot. I have another RS35A which has run fine for over 30 years. I don't feel comfortable playing around inside a live supply but will take the cover off and do another visual inspection while unplugged. It has to be something simple I would think.
thanks Don, Gary W7TEA On Oct 17, 2013, at 5:42 AM, "Don Wilhelm-4 [via Elecraft]" <[email protected]> wrote: > You did not show any of the prior information (one of the problems with > posts from Nabble), so I can only guess that you are working with a > power supply problem. > A situation like that is often caused by something loose in the negative > side of the supply, something that is frequently overlooked. > > 73, > Don W3FPR > > On 10/17/2013 1:54 AM, Gary, W7TEA wrote: > > Well, traded out the voltage regulator IC and no joy. Then I tried Deoxit > > on > > the adjustment pot, tweaked it a bit and measured voltage at 13.8vdc! > > Great! Turned it off and on, tried it again, and was ready start bragging > > to > > the XYL---but it was back to .8v. Didn't see any suspect components while > > I > > had it open. > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > If you reply to this email, your message will be added to the discussion > below: > http://elecraft.365791.n2.nabble.com/K3-suddenly-dies-tp7579305p7579965.html > To unsubscribe from K3 suddenly dies, click here. > NAML ----- 73, Gary W7TEA K3 #1001, #5763 -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-suddenly-dies-tp7579305p7579967.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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
