====== Induction Coil Arc ====== {{:physicsdemos:electricity_and_magnetism:inductance:induction_coil_arc.jpg?600|}} A one inch corona discharge arc is generated with a low-voltage DC power supply and a rapidly switched induction coil. Note: Demo is kinda janky and there's no real thing you're clearly demonstrating - at least for educational purposes. There appears to be no documentation, circuit diagram, etc. online, so it's mostly scrap... If you find a use for it, congrats. J3, A4 PIRA DCS 5J10.20