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Simple 9V Wireless Microphone FM Transmitter Circuit Diagram

2015-01-10 19:10  
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The FMtransmitter circuitcan be used for wireless microphones and it can receive 88-108 MHZ FM radio signals. The power supply for this transmitter circuit will be a 9v battery. Because it needs to follow the FCC rule of the radiation limits, the length of the antenna should be kept in 12 inches.

transmitter circuit