Oscillator using pinpoint-plasma

Abstract

Large amplitude oscillation was excited by strong ionization which is caused by a nonuniform field in DC-grow discharge. Electrodes were used a big disk (C: cathode) and very small needle (A: anode) for discharge. Using gas is argon, pressure is 0.18-0.19 Torr, discharge voltage is 350-640V. In these conditions, produced signal is a sine wave (frequency: 1.06MHz, amplitude: 3.9V and output power: 75mW).