i am sticking my neck out too far, I stand by what I say above, but this part is conjecture and arm chair logic. As I said, I am going to see if it's true. I will test first and analyzed later.
A generator without a VR, can, for the lack of a better word, "run away". We know that a good 6V gen with a bad 6V VR can overcharge a 6V battery. So why not up to 14V with a 12V VR. An unregulated generator could put out 30V +..... possibly more. They must be regulated for a reason. Not going any further than that. As Mike Myers' mother would say "talk amongst yourselves".
First try below. Got the trailer a little. Just surface scorching though.....and the wood. thanks to the Forest Service Hot Shot crew. Those guys are great. Gotta tweak the VR more......when my hands heal.....
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn