Tom, I am stumped about your wanting a power supply for your M H rig. The
only way you will be getting 120 VAC is to be plugged into shore power or
running your generator or having a large inverter to provide this voltage.
If your rolling down the road mobile you will have to be running your on
board generator or a large inverter. I am taking the 12 volts off the
batteries and the alternator in the engine keeps the batteries up and if
your plugged into shore power the bats are being charged so I guess I don't
understand what your looking for. sorry for the band width.
Ed K7UC