FM Tranmiter

In this section discuss about the mini fm transmitter, with a range of broadcasting about 300-400 meters. when using a 9 volt working voltage, the transmit power of about 300 meters and when using the working voltage 12 volts, the range of about 400-450 meters, depending on the antenna you use. And will be presented the links to sites that provide tutorials and free electronic circuit. To get a clear picture of the scheme / circuit is click on the image sequence. Good luck!

L1 and l2 to 5 times the wrap windings, you can use a pen to fill melilitnya so neat and after finishing off the contents of a ballpoint pen was tsb.c5 digu8nakan for the placement of broadcast frequencies. can be tuned between 88-108 mhz, to reach further use Yagi antenna steering.

List of components:
Part Total Qty. Description Substitutions 0.001uf Disc Capacitor C1 1 C2 1 5.6pf Disc Capacitor C3, C4 2 10uf Electrolytic Capacitor C5 1 3-18pf Adjustable Cap R1 1 270 Ohm 1/8W Resistor 270 Ohm 1/4W Resistor R2, R5, R6 3 4.7k 1/8W Resistor 4.7K 1/4W Resistor R3 1 10k 1/8W Resistor 10K 1/4W Resistor R4 1 100k 1/8W Resistor 100K 1/4W Resistor Q1, Q2 2 2N2222A NPN Transistor 2N3904 L1, L2 2 5 Turn Air Core MIC 1 Electret Microphone Coil MISC 1 9V Battery Snap, PC Board, Wire For Antenna