Wireless Electricity: a Simple Experiment

With only 4 components you can experiment with wireless transmission of electric energy. This system exploits the resonant inductive coupling between two coils to transmit energy between them. Slider 2732 (you should check his channel, he has great experiments on wireless systems and other subjects ) makes the following suggestions: Any NPN or PNP small signal transistor can be used. For PNP, simply swap the battery connections over. Best to try, include 2N2222A, S