06-03-2015, 12:02 PM
Actually, if you want to do it right, build an Alexanderson alternator. LOL ! As for spark gaps... many years ago, back in the 1960s, I built a complete one using a Model T spark coil. Made my own oscillation transformer and condener. The condenser I made with plates of window glass, and aluminum foil. It actually worked, although it was rather broad in its tuning. LOL ! Fortunately, I just used it for a few experiments. Never actually heard any complaints.