Noise-producing sound effects using NE555


Posted on Feb 6, 2014

Tools that created this is to produce noisy atmosphere. This circuit is quite simple, this circuit controlled by two 555 timer IC is assisted by other discrete component resistors and capacitors. The first 555 timer U2 will generate a tone which can be heard on the frequency can be set using a potentiometer R5. next U2 output is given directly to


Noise-producing sound effects using NE555
Click here to download the full size of the above Circuit.

the speaker or speakers. But in this case the speaker will not produce a constant tone. This is because the U2 is modulated by the sawtooth waveform generated by U1. The following is a schematic drawing: Sawtooth frequency that can be set using the potentiometer R4. The end result will be obtained modulated signal high and low tones that can be arranged with R5 while the modulation rate set by R4.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Self switching Power Supply
    Heat sensor relay switch
    latest Wailing Alarm Siren circuit Schematic with explanation
    Telephone Call Recorder
    Interface a HD44780 Character LCD with a PIC Microcontroller
    12V Car Battery Charger circuit
    how to make simple piezo buzzer circuit
    and filter 1 3 5w power rf amplifier
    automatic night lamp 230v
    12v Battery Charger Circuit with Auto Cut off
    Noninverting gain circuit diagram by the MAX4107



    Top