Niel: I think electrolytics are a good guess. Also selenium rectifiers but I don't think that model uses them. The problem is aluminum electrolytics are not made anymore. You can substitute polymer electrolytics but while they are electrically interchangeable they are not form-fit interchangeable. Sometimes it takes some mechanical rework to fit them in. I have seen aluminum electrolytics on the surplus market but they will be old and unreliable. Your best bet is the polymers. You'll find them at Digikey, Allied, and the like. 73 Fred, AE6QL -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Niel Skousen Sent: Tuesday, March 17, 2015 2:00 PM To: Elecraft Reflector; QRP-L Mailing List Subject: [Elecraft] HP 8921 problems
Good Afternoon All, I have an HP 8921 Service monitor, and when I powered it up today, it worked for about 5 min... then the power supply started to sag, the display crashed, and I powered down. Any one have any experience with HP8921 service ? Seems like the power supply overloaded, and I can smell the smoke 8-( but I cant see anything obvious inside (eg puff'ed up / split electrolytic cap's in the power supply etc) Its been off for several months after a move. Anybody with idea's or suggestions, please drop me a note off line TIA Niel WA7SSA nskousen (at) talisman-intl.com nskousen (at) ecsecurityinc.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 Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
