RF Circuits

Below is schematic circuit of the fm transmitter


Printed Circuit Board (PCB) and Component Layout of the fm tranmitter



Parts List of the fm transmitter
Resistors
R1 = 2,2 kΩ
R2 = 4,7kΩ
R3=5,6kΩ
R4 = 47Ω
Ceramic Capacitors
C1=4,7 nF
C2=2,2 nF
C3 = 4.7pF
C4 = 100 nF
C5 = TRIMMER CV 3-30 PF.
Transistor:
T1 = 2n2218 or equivalent.
Other:
L1 =  5 turns of enameled thread 22 AWG, diameter of 10 mm.
B1 = Battery of 9 volts alkaline.
Mic1 = electret microphone.
Several = printed circuit board, antenna, box, etc.

Source: Toni Electronica

See more: FM Transmitter Circuit