In a way, that's good news ! Mine was completely dead when I find it. It came back alive after about 30 hours of work put into. Do not worry for the 4kC and below being silent: no mechanical filters that could fail in there, only coils and passive parts. After a complete cleanup, restoration and alignment, performance will be at par with any R-390A. You only need a LOT of patience and the will to "resurrect" it. And yes, it's a work of love !
73, Jacques, VE2JFE in Montreal -----Message d'origine----- De : r-390-boun...@mailman.qth.net <r-390-boun...@mailman.qth.net> De la part de Adam Morehouse Envoyé : 12 août 2025 22:17 À : R-390 Mailing List <r-390@mailman.qth.net> Objet : Re: [R-390] First time R-390 Owner Well, I tried it out tonight. Brought it up slow on my variac. It plays pretty well using my Kiwa MAP. I also have a speaker hooked up, and the audio is very low - unless I turn the BFO on, then its very loud. The Line Meter also doesn't move unless the BFO is on, and the filters below 4KC are dead (little bit of static..). So it's working, but needs some love. Might just be me, but it seemed a lot easier to tune in some SSB on 40m versus my 390A. On Tue, Aug 12, 2025 at 8:12 PM David Wise <d44617...@hotmail.com> wrote: > I had a snap crackle pop that turned out to be a wire wrapped around a > sharp corner and shorting. It was an IF amp screen supply. Take a > close look. > ------------------------------ > *From:* r-390-boun...@mailman.qth.net <r-390-boun...@mailman.qth.net> > on behalf of Barry <n4...@knology.net> > *Sent:* Tuesday, August 12, 2025 3:07 PM > *To:* Norman Ryan <nnry...@yahoo.com> > *Cc:* R-390 Mailing List <r-390@mailman.qth.net>; Adam Morehouse < > morehous...@gmail.com> > *Subject:* Re: [R-390] First time R-390 Owner > > Yes, snap, crackle, and pop is fun when it comes to your breakfast > cereal > - not so much when it comes to your radio. > > 73, > Barry - N4BUQ > > > Hi, Adam, > > > If the receivers have not been powered up lately, it's a good idea > > to > soft-start > > them with a variac. Hook it up to your radio and gradually increase > > the > voltage > > from zero to no more than, say, 115Volts. Then look and listen for > anomalies. > > > As a matter of course I routinely soft-start my receiver. Like us > > older > folks, a > > gentle start helps a whole lot (nudge nudge wink wink)! > > > Have fun! > > Norman > > > On Tue, Aug 12, 2025 at 11:46 AM Barry < [ mailto:n4...@knology.net > <n4...@knology.net> | > > n4...@knology.net ] > wrote: > > ___________________________________________________________ > > R-390 mailing list > > Home: [ http://mailman.qth.net/mailman/listinfo/r-390 | > > http://mailman.qth.net/mailman/listinfo/r-390 ] > > Help: [ http://mailman.qth.net/mmfaq.htm | > http://mailman.qth.net/mmfaq.htm ] > > Post: mailto:R-390@mailman.qth.net <R-390@mailman.qth.net> > > > This list hosted by: [ http://www.qsl.net/ | http://www.qsl.net ] > > Please help support this email list: [ > > http://www.qsl.net/donate.html | http://www.qsl.net/donate.html ] > ______________________________________________________________ > R-390 mailing list > Home: http://mailman.qth.net/mailman/listinfo/r-390 > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:R-390@mailman.qth.net <R-390@mailman.qth.net> > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html > ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:R-390@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:R-390@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
