I had an idea, years ago, that consisted of an oscillating magnetic cylinder within a doughnut of magnets tied to alternating electrical charges self perpetuated by the centrifugal force of the spinning cylinder.
The idea is, if you could get your power source down to something like a battery, you might get more output for the energy input. Of course, if this idiot anon can think of that, someone else, out there, would've already made it work.