1.5 Watt FM Transmitter | Schematic Diagrams


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1.5 Watt FM Transmitter

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This is 1.5 Watt FM Transmitter circuit. This circuit should be able to cover 1-2 KM range.

1.5 Watt FM Transmitter circuit

Components List

R1=220K
R2=4.7K
R3,R4=10K
R5=100ohmC1,C2=4.7uF Electrolytic
C3,C4=1nF
C5=2-15pF
C6=3.3pFQ1=BC547C
Q2=2N2219A
P1=25K
MIC=Electret Condenser Type

P1 act as condenser microphone volume level. For FM, coil will be small. Use thin gauge enamel magnet wire. the diameter of coil will be a couple mm: use ink tube from pen to form, and try 8-12 turns. Small inductance coils make for much guess work.

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