Simple Wireless Electricity System

A pancake coil and a transistor. 1x AAA battery is being used to power the circuit. The coil is an old modem lead, with 2 wires running through it. The wires are connected following Nikola Tesla’s classic pancake coil method. All receiving coils are made from similar former computer modem leads. The first receiving coil shown is a single winding coil, not bifilar, with an LED connected across the start and end of the wire (thanks to YalgorupIT for the middle positioning of the LED idea, he makes his like