Someone recently gave me an old Homelite WI-280 generator. It's not got a lot of hours on it and the Wisconsin engine sounds really solid and high-quality, so I really want to get this unit back into prime condition. It produces power now, but only 115 volts. I want about 122 so I found the regulator, intending to adjust it. But it's an open circuit board (not epoxy potted) and looks like what you would find in a small radio from the 1980's. I don't want to trust this regulator to keep the voltage right for my modern stuff. It also has no low-frequency voltage roll-off. So I am trying to find a voltage regulator that will work in my unit. Rotor winding needs 72 volts at 1.5 amps under full load. Regulator gets it's power from a "quad winding" that puts out 120 volts. The sensing input on the regulator could be either 120 or 240 volts. I would rather use a regulator with 120 volt sensing input, because this generator has a big switch that can select both windings in parallel for high amperage 120 volt or put the windings in series for 240 volts at half the amperage. I would not be able to use the high current 120 if the regulator required 240 for sensing input. One other requirement is that the regulator not depend on fan forced air for cooling. It is mounted in the "electrical box" with all the recepticles. There is not any room to mount it in the back of the generator, since the cooling fan is back there in this model.