There is a lot more to designing an FM transmitter, than meets the eye. Here is a typical FM transmitter circuit. It consists of 3 stages. An audio amplifier, RF Oscillator and RF output. Read More Source : http://www.talkingelectronics.com/te_interactive_index.html

L1 – 3.5 Turns Variable Coil BA1404 IC 38KHz Crystal ANT – 30 cm of copper wire Whether you want to create your own radio station, transmit the music around the house, or simply create a wireless link between your iPod and a receiver in your car, this transmitter will let you do these things [...]

R1=See Text and Picture1 IC1=LM3915 D9=Led Yellow 5mm R2=10 Kohms IC2=LM317T [On Heatsink] D10=Led Red 5mm R3=1.2 Kohms TR1=15 Kohms Multiturn Trimmer S1=2dip Switch R4=8.2 Kohms D1=1N4002 J1=3pin 2.54mm step connector R5=680 ohms[2W] D2….D8=Led Green 5mm R6=270 ohms C2-3-4=100nF 100V MKT 5% C1=100uF 25V C5=22uF 25V

R1=10Mohms C4=10uF 16V IC2=4013 R2=100ohms C5=47uF 16V IC3=4047 R3=1.2Kohms C6=470nF 400V CR1=3.2768 MHZ crystal R4=560Kohms D1=5V6 0.4W T1=220Vac/2X10V 2X2.2A *see text R5-6=2.2Kohms D2-3=47V 1W F1=5A Fuse R7-8=56 ohms 5W Q1-2=BS170 F2=0.25A Fuse CX=22pF trimmed capacitor Q3-4=BD139 L1=1H smoothing choke C1-2=22pF ceramic Q5-6=BD249 C3=8.2nF 100V MKT IC1=4060

Circuit avid Kwaku Celestin – Ghana, West Africa Email :mightycelestin@yahoo.co.uk Description: A VHF band TV transmitter using negative sound modulation and PAL video modulation. This is suitable for countries using TV systems B and G. Notes: The frequency of the transmitter lies within VHF and VLF range on the TV channel, however this circuit has [...]