Corona Discharge Photography

In this video I’ll show the technique of “Kirlian Photography“, which uses corona discharge off a conductive object for imaging. The technique uses two clear glass plates with salt water between them. The salt water is connected to a high voltage, high frequency AC source. An AC flyback transformer works for this, but i got better results using a solid state tesla coil operating off a slayer exciter circuit - the same circuit i demonstrated in my previous video. This generates around 40,000 volts at 350 kHz with a 12V input. The high voltage AC doesn’t conduct through the glass, but causes high voltage charges to appear on the outside surface of the glass plates through capacitave coupling. Because glass is an electrical insulator, the charges can’t move freely along the surface, so when an electrode connected to ground comes near the glass, the resulting discharge “fans“ out, as charges from a relatively large area will jump to a single point electrode. When a