Had headlights, then high beam only, now nothing

Sorry, I guess I was so thrown, by the sudden problems (after having dealt with some problems we had, with a 2008 Town & Country, I got flustered and didn't make very good posts, to include not specifying the vehicle details. my car, is a 1971 Dart Swinger. another bit of info, is that this car was built originally as a 198 Slant 6 Automatic model and Some Where, along the way, someone swapped the Slant 6, for a 318. So, the wiring for the 318, was brought with it & the electronic ignition box & the electronic voltage regulator, along with their wiring, was blended in, with the original pieces. The engine compartment isn't as neatly laid out, as it was, from the factory.

Now, to the problem. Both headlights were on low beam and suddenly they went out. I tried to get them back, by cycling the dimmer switch a few times, but didn't work, so I left it on High Beam & made it on home. Just as I pulled in the driveway, the high beams went out. I cycled the dimmer switch, yet again (not knowing the condition or age of that switch. Again, it didn't work. So, my first thought was that the dimmer switch (being who knows how old) might b the issue and since I had one on hand, I tried it. Didn't help anything. It did occur to me, to check the headlight bulbs & I did just that, checked both beams of both head lights, because I didn't want to be tearing into this, when all along it could be the bulbs, though each beam of both sides, went at the same time.

I have taken the ground loose, by the radiator, cleaned up the area & the terminals & reinstalled them. I have also removed the 3 bulk connectors on the firewall (1 at a time, I looked them over, cleaned & reinstalled them).

Now, I don't have the sealed beams installed, right now. But I turned the headlight switch on & the violet wire gets hot, BUT, there is no voltage there. And that is as far as I have gotten, so far. had to stop & work on getting a rental vehicle & a way to get there. Oops, forgot to include that with the new headlight switch, the high beams work with or without the engine running. Low beams, cause the amp meter to jump quickly, to the left (discharging, of course).