Royal rifes machine uses very high voltages to produce a electromagnetic field both in the AC and DC range, at a specific frequency for the pathogen being treated. The person being treated is exposed to the energy emitted from the device, and can be treated many tens of meters away from it.
For those who have not heard of him, he was probably one of the greatest scientists that ever lived. He invented the most powerful visual microscope ever built in the 1930,s among many other things.
Anyone who wants to read a quick history of the great man who the medical profession hailed as the curer of all diseases goto this webby. (By the way, you all can guess the outcome of his discoveries before you read this story)