Beat frequency indicator


Posted on Aug 18, 2012

This circuit uses LEDs to display the beat frequency of two-tone oscillators. Only one LED is on at a time, and the apparent rotation of the dot is an exact indication of the best frequency


Beat frequency indicator
Click here to download the full size of the above Circuit.

When fl is greater than f2, a dot of light rotates clockwise; when fl is less than f2, the dot rotates counterclockwise; and when fl equals f2, there is no rotation.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Car Light Dimmer 12 Volt
    Digital weight scale
    Telephone in use indicator
    High-Voltage Pulse Generator
    Small Footprint Square Wave Oscillator
    Direction Sensitive Light Barrier
    BA328 stereo preamplifier circuit
    Available voltage booster 400Vp-p output



    Top