This is a very simple oscillator which uses a TS 2950 3.3V voltage regulator to light an led and charge batteries.It takes advantage of an unwanted characteristic of some voltage regulators which is oscillation or noise and i use this to pulse a coil.A more complicated setup with a 1:1 bifilar coil is also shown and this produces a higher voltage (even above supply voltage) than the voltage regulator supplies under normal operation.
