SPY FM Transmitter (1.5V)

Spy FM Transmitter Circuit Schematic With Explanation

This is so impotent circuit for us, Because we can use this circuit as a spy unit.This circuit can transmit signals about 30m. And the other important thing is the power of this circuit we can operate this circuit with 1.5v to 3v (1.8 mA at 1.5 Volts )

L: wind 6 turns of solid wire on a pen/ pencil that is just 1/2" diameter, remove the wire from the pencil & spread the winding to make a length of 3/4" 

Note
# If you are unable to find the transistor here use these transistors Because here you can use equal transistors such as 2N2222A, BFxxx series, BC109B, C, and even well known BC238.
# Use 1.5v to 3v for this circuit.Don't supply more than 3v(3v can cover the max range 30m)