FM transmitter

This circuit is a FM transmitter. can run it by 9v battery. the power consumption is very low about 10mA so a small 9v battery worked for long time.
The frequency of radio must set between 88 to 93 MHz.
The circuit contain trimmer for set frequency of transmitter.

Part list:
Transistor BC547(2pcs)
Capacitor 10uF(2pcs)
Capacitor 1nF(2pcs)
Capacitor  5.6pF
Trimmer 2-18pF
Electret microphone
Resistor 4.7k(3pcs)
Resistor 100k
Resistor 10k
Resistor 270 ohm
Coil 4mm diameter 5 turns air-core (2pcs)
Antenna 10cm

FM transmitter

FM transmitter 


Lokasi: United States

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