Any inexpensive way to get regulated 120 volts AC power? I tried a Tripp Lite Smart LDC 1500 UPS. IT said it's output was 120 volts, and it had Automatic Voltage Regulation. Well it turns out it doesn't really regulate the voltage. If it goes up over 128 volts it reduces it by something like 14%. So the ups won't work. Any suggestions? My AC is with in tolerance, But it jumps around some. In the winter its not to bad. Its more like a drift. Starts out high in the morning, and gets lower all day. But now that's it has gotten really hot here, and we, and everyone else in the area are using their air conditioning, it jumps up and down all day. It's still within 5%, but it makes my bias current change all the time, and it drive me crazy. Wish I could afford a Perfect Wave.