I have similar clanking noise . However, it does not happen every time. I bought mine used and it is dated in the 1980's or there about. I had it for almost 3 years. A happy user. W4EG > From: jo...@earthlink.net > Date: Fri, 26 Oct 2012 13:54:38 -0400 > To: d...@w0dhb.net > CC: flexra...@yahoogroups.com; flexradio@flex-radio.biz > Subject: Re: [Flexradio] Heads up on Astron Power supplies > > I have an Astron RM-35 amp linear power supply powering my Flex-3000 and > sometimes it will make a loud clank when I turn it on. Has anyone know what > causes that kind of racket? >
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