I was in naval nuclear power for nine years, and even though reactor principles was my best subject gravitrons were not really something we worried about on a day to day basis.
I try to read threads like this every once in a while to see if my brain is still capable of scientific thought.
The answer appears to be ‘not really’.
Ralph Sansbury's ideas start off simply enough. He was doing experiments with currents and he noticed that currents create electrostatic fields, which is not supposed to happen, and that the fields reverse when the current reverses. The explanation: nuclear particles particularly electrons, previously thought to be indivisible as atoms once were thought to be, must have structure and sub particles of their own. At rest such electron-solar-systems would not create electrostatic dipoles but under the stress of a voltage the orbits of such particles would become eliptical and create dipoles, and the cumulative effect of such dipoles in their quadrillions would create an electrostatic field which would in fact reverse when the current reversed.
The computed necessary speed for a sub-electron particle would get you to one of the near galaxies in a couple of seconds. That leads to all kinds of interesting things, try linking to the link I provided above and download the PDF book file.