Or.....
One additional utterly impractical device. Hideously expensive, wastes energy, and heavy.
Of course I went bananas until I got one.
A SOLA ferroresonant Line Tamer. + 40% - 40% line correction. 72 volts in? Big deal. 162 volts in? Child's play. 120.00 volts out. Bank on it. Yeah I tweaked the finals to get the least significant digits on the money - shows neurosis.
Full isolation transformer filter. What goes is does not come out. I have seen incoming waveform that would saw a petrified log, beautiful sinusoidal output.
I picked three of these units up out of crate meaning they had dirt on the plastic wrapper. About the size of a standard roll around top tool chest.
140 lbs. Plugger-in, no load, 51 watts. Full load around 113 watts consumed. Good things are not cheap.
I provided this info as a measure of perspective. Yes it is possible to get something that is a true management device. Less than minimum or more than maximum voltage limit the tickler transformer field collapses and it's "Honey Where's The Flashlight" time.
At one time, long long ago I had dreams of installing one in Quicksilver. Then the mechanical realities set in with a thump. Strike that. With a heart numbing crash. Maybe in a toy trailer hauled by a diesel pusher. You know, the one with a ton of batteries, A Yanmar diesel generator, and totally plated with solar panels.
Meanwhile back at the ranch...
I keep building circuit boards loaded with 20mm MOVs, 1,500 watt Transient Voltage Protectors and a few gas discharge tubes.
Because down here, in a typical Mexican RV Park, a progressive energy management system would equal Lights-Out 100% of the time.
Oh well, like I said, you can't have everything...
