Nice cabinet. Reminds me that I need to refinish my CY-979A. Someday... 73, Barry - N4BUQ
On Sat, Aug 16, 2025 at 6:06 PM Adam Morehouse <morehous...@gmail.com> wrote: > https://photos.app.goo.gl/QBcHdpDbK5Ryv9Ky9 > > Finally got it down on my bench, got the power, AF, IF modules pulled out, > and the front cover down. > > It must've been kept in a garage, next to an old cars exhaust, the P/S and > side of the IF deck are covered in a wet greasy gunk. The rest of it looks > fairly clean so far. > > Tomorrow I'll try to get the power switch brought back to life, and start > cleaning it up. > > > > On Sat, Aug 16, 2025 at 4:23 PM David Wise <d44617...@hotmail.com> wrote: > > > A snubber attenuates or “snubs” transients. This one is 0.1uF in series > > with 100 ohms, across the switch contacts. Reduces the arc when the > > contacts open. The R-390A line filter is the module where the cord goes > > into the mainframe. > > > > Dave Wise > > > > > On Aug 16, 2025, at 11:03 AM, Barry <n4...@knology.net> wrote: > > > > > > Tube Pullers -> Jealous :-) > > > > > > Barry - N4BUQ > > > > > > > > >> The line filter was bad in mine too, so, many years ago, I replaced it > > with > > >> a IEC320 with integral filtering. > > >> It just fits the hole for the original filter, mounted from the > inside. > > >> I cannot remember who provided the two other pictures attached, but > one > > >> displays a R-390 back panel that is still original, the other gives > the > > ID > > >> for the RF deck tuning slugs. > > >> To any useful purpose... > > >> > > >> 73, Jacques, VE2JFE in Montreal > > >> > > >> The line filter can go bad. In my case, it lost connection internally > > and I > > >> had to rebuild it which it wasn't very easy The box is soldered shut > so > > lots > > >> of heavy iron needed to get it apart and back together. Hopefully > yours > > is > > >> still okay. > > >> > > >> Barry - N4BUQ > > > ______________________________________________________________ > > > 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 ______________________________________________________________ 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
