Question - How do I measure on multimeter the output voltage from circuit seen from 2007 Georgia project, that was secondary side of Inverter of 120VAC connected on each output line single diodes that are opposite polarity each facing, going to resistor load? Is this still a portion of 120V AC output ,or approx 40 volt half wave DC plus and minus DC? The writer may have been thinking about back flow protection. This is not print error, or about clipping circuit. Please advise.