First on the pioneer, did the deoxit a couple times, also cleaned and lubed the tuner as described on audio karma, cleaned tape monitor switch and worked it, as well as all the other switches, just checked offset, also per AK, rt ch 130mv, lf ch 200mv. As for the Grundig, I'm leery of doing anything until I'm more sure of myself, I've read about the high voltages, on some other sites. What are thoughts as to recap of PS? Also, I'm located near Kittanning, about 40 miles up the Allegheny.