The following project shows how bo construct a high frequency, high-voltage device capable of causing a fluorescent lamp to light (without wires), the corona effect (Si. Elmo's Fire), and the wireless transmissions of radio-frequency energy. The device as a safety feature may be powered from a 12-volt battery source as well hs 120 Vac. к is completely solid-state, simple to construct, and is to be considered as an introduction to the larger generating devices such as the 250 kV Tesla Coil and other high-powered devices.