Big Ben Sound circuit


Posted on Oct 25, 2012

This circuit produces the famous Big Ben sound. It produces the `ding dong` sound when switched ON. Basically the circuit alternates between two frequencies which are adjustable. This produces the `ding-dong` sound. The first IC(left) oscillates at about 1Hz. The second IC's tone is modulated by the changing voltage at the output of the first IC.


Big Ben Sound circuit
Click here to download the full size of the above Circuit.

The first IC determines how fast the changeover from one frequency to the other takes place and second IC determines the tone of the final output. By varying the VR1, the changeover rate can be adjusted. By varying VR2 the tone can be adjusted.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    HF 1-30MHz linear amplifier
    Electric-vehicle-battery-saver
    Telephone Voice Mail Alert Circuit
    Computerize Your Room/House
    Noise Floor Measurement Circuit of PLL Frequency Synthesizers
    80 mhz 108 mhz fm transmitter circuit
    mp3 mode circuit wtv020sd 16p tutoria
    2 transistor fm transmitter
    Moving Charge Sensor of J. Ahern
    fade fade out led circuit car interior lighting
    Smoke Alarm Circuit
    Transistorized Auditory Gimmick
    Homemade Digital CALL-ID English Version
    555 meter circuit diagram of the analog information Qigong
    Laser power supply circuit
    TC621 temperature sensor using poultry hatchery electronic thermostat control circuit diagram



    Top