9V FM Radio Transmitter circuit diagram


Here the simple and low cost FM transmitter circuit. The frequency range of this FM transmitter should be about 89MHz – 109MHz. Output power is about 9mW at 9V.
R1,R6_____________________12K
R2,R4_____________________100K
R3________________________22K
R5________________________1K
R7________________________100R
Q1________________________BC338
Q2________________________BC548B
Microphone JinIn ECM-60P B1
C1___________________10uF/25V
C2___________________22n
C3___________________10n
C4___________________3n3
C5___________________2p7
C6___________________22p
C7___________________100uF/16V
tuning capacitor_____0-30pF
Download the complete explanation of this FM Transmitter (include circuit diagram, component list, the circuit’s work) in PDF format HERE