FM Transmitter circuit


Posted on Feb 6, 2014

I wanted to use a 3. 5` jack instead of a microphone, I would need to change something else in the circuit. What would be changed in order to use an audio jack instead of a electret microphone to transmit One like this: taken from an old radio. It has 7 pins, four small knobs on one side, and a bigger one on the other side.


FM Transmitter circuit
Click here to download the full size of the above Circuit.

It does not have any model number. One more thing, I hope it doesn`t bother you: Where in the circuit could I add a white LED so I know the battery isn`t dead I think it`s 3V, but maybe it`s more, since it doesn`t look very bright on a cell battery.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Solar LED Mood Light
    Low-Power Antenna Tuner Circuit
    Hall Effect Sensors Magnetic Field
    tuned sine wave oscillator circuit
    OV7670 configuration
    automatic power factor controller using microcontroller
    Operation of an Armstrong Oscillator
    M15m Tracking Transmitter
    On-off Infrared Remote Control
    Intelligent ultrasonic ranging ASIC SB5227 peripheral circuit design
    Adder circuit
    Secret Ethernet optical wireless communication drive circuit diagram



    Top