1.5W 1-2 km Range FM Transmitter by 2N2219

This is a well designed basic FM transmitter that you can easily recive the signals transmitted from this transmitter in a 1-2km range with using a normal FM reciever. Another property of this circuit is that the bobin is placed on the printed circuit board. The input sound’s amplitude can be adjusted by using the P1 potentiometer.

Parts List:
R1=220K,R2=4.7K,R3-R4=10K,R5=100ohm,C1,C2 = 4.7uF electrolytic, C3-C4=1nF
C5=2-15pF,C6=3.3pF,Q1=BC547C, Q2=2N2219A, P1=25K, MIC=ecm series

Source:http://www.circuit-projects.com/15-watt-1-2-km-range-fm-transmitter.html

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