Ramcharger electrical troubles
I've said this many times, "the path." Take a symptom, and start by troubleshooting that as if it were the ONLY problem. Sometimes that can lead you to a fault that fixes MORE than one.
"Let's say" the headlights seem to be dim. Get into the book, and get into your mind "the path." Where does "it" come from and where does it "go?" Battery--fuse link--bulkhead--whatever--ammeter?? ---whatever---light switch---bulkhead---some connectors or other---etc---etc---headlight connectors---AND GROUND---and follow the GROUND back to the battery
Now check as you can "along that path" and just cherry pick the "easy parts" first. You might think the light switch is going bad. Maybe so. But it might be easier to check first at the bulkhead connector or the dimmer switch and work your way towards that "end," than to cause aggravation and pain of getting to and getting "out" the light switch.
Try not to get yourself frustrated and buried and mired in complications. Pick a major symptom/ problem and try and find that first.
Someone mentioned "dirty ignition switch." CERTAINLY. This is why on the 'A's I have sometimse suggested guys add a relay to handle underhood ignition loads from the key.