555 tracking transmitter

Posted on Feb 6, 2014

The schematic shown here is a circuit of a 555 tracking transmitter. 555 is a famous versatile IC used in many electronic projects. In the below mentioned circuit this IC is used to generate a tone which will be transmitted through the FM transmitter circuit which is built around the 2N2222 transistor. The circuit can be tuned between 103 to 108

555 tracking transmitter
Click here to download the full size of the above Circuit.

MHz and will transmit at a distance of 100m. L1 is equal to 2 turns of #24 wire on 5mm form, and TR is equal to 1 to 30 pf trimmer capacitor. Antenna can be a 75cm wire, for full range keep the wire vertical, or you can also use small 6 or 12 inch wire as antenna but the range will become half or less. The circuit can be operated with 4. 5 volt batteries of any type.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Hot Springs Reverb
    Pic-Plot : a GPIB to RS-232 converter
    12V Fan controller with PIC18F25K20
    The CDMS II Veto Readout Electronics
    portable solar lantern circuit uses 6
    dome light dimmer cars
    M15m Tracking Transmitter
    IR Remote Control Tester
    PWM Generator
    TDA8358J application circuit