A personal FM transmitter is a low-power FM radio transmitter that broadcasts a signal from a portable audio device (such as an MP3 player) to a standard FM radio. … They are often used in cars but may also be in fixed locations such as broadcasting from a computer sound card throughout a building.
FM TRANSMITTERS. They can be called SPY TRANSMITTERS, FM BUGS, or a number of other interesting names. All do the same thing. They transmit on the FM band in the range 88MHz to 108MHz. This circuit is the best you can get with one transistor.
This Is Very Long Range Fm transmitter circuit.You can make it easily by using only one transistor.
You can download PCB layout and print it on simple paper and make a PCB at simple card Board how to make see Video Given below.