Get Caig FaderLube. Make tiny hole in the pot. Squirt and rotate control. If that does not work, find a different pot or take that one apart.
Is that pot linear or audio taper? Allen Bradley Type J pots cost over $50 each new. (Do they still make them?) One of those will last the rest of your life. Roy Morgan K1LKY Western Mass [email protected] > On Sep 25, 2024, at 11:10 AM, Barry Scott <[email protected]> wrote: > > When I turn the LOCAL GAIN in my R-390/URR all the way CCW, something is > causing the audio to suddenly increase significantly. It's just at the > very CCW position and I suspect dirt/trash/whatever is the cause and a good > cleaning would probably fix it. > > Anyone opened one of these and successfully repaired it? I've done that > for a lot of other pots very similar to this one and I think it's quite > doable but thought I'd ask here first. > > If I can't fix it with a cleaning, then I think I could swap the internals > with another similar pot or maybe just swap the LINE GAIN pot with the > LOCAL GAIN pot as I really don't use the LINE AUDIO all that much (except > to watch the meter because that's kind of fun to do). I'd just get another > pot but I'm not finding any just like it - at least not yet. > > Thanks, > Barry - N4BUQ > ______________________________________________________________ > R-390 mailing list > Home: http://mailman.qth.net/mailman/listinfo/r-390 > 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 ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 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
