I have an old 220 amp that I love the sound of but it's developing some static like the caps are going bad. I don't think they have ever been replaced so it's long overdue. Anyone done this before and are there any tips to ordering the right parts? I'm handy with the soldering iron but never have done a cap job, this will be a good chance to learn. I have done some work before inside amps so I know about the harmful voltages and such. I found a schematic here: http://www.ampix.org/albums/userpics/10075/Acoustic_220_service_manual.pdf It looks like there are several (8) electrolytic filter caps, not sure which ones to replace or where to source the parts. Any help would be greatly appreciated!