Monitor the current taken by the circuit, it should be 5-10mA. Grasp the coil with your fingers!!! - This will stop it oscillating and the current should rise. if it does not you have a wiring error. Check the voltage across R3, should be 1-2V. If the circuit was oscillating then the problem is the frequency its tuned to. Try squeezing the turns of the coil closer - lowers the frequency, or stretch the coil - raises the frequency. Because there is no modulation, it is difficult to tune a FM radio into it. You really want an old fashioned set that hisses when its not on a station. Tuning into the oscillator will stop the hiss.
Frank