In fact there’s nothing inside that you’d immediately equate with high voltage, the only electronic component in the generator’s base beyond the battery pack is a motor speed controller.

That is unless you’re working with Van de Graaff generators ... For added protection for the meter from high voltage I added two spark gaps inside in case some of the resistors shorted.

If you undersize the generator, you produce essentially the same condition as a utility “brown out” condition with insufficient voltage ... A cable on the inside of the house runs from ...