I started ac conditioning with a monster government military surplus 300 pound transformer. It helped but was noisy. Since then I have had over twenty devices, some worked a little, some did nothing, some had liabilities, some were beautiful, some were regenerators, and the High Fidelity Waveguide power center which uses magnets to get the junk off the line.
It looks like a toaster oven, but it really works.
It looks like a toaster oven, but it really works.