Sound Generator with IC 555

This is a sound generator based on general purpose timer IC 555. A flip-flop circuit is included, so this circuit will give sound output and blinking LED.? There are 2 modules in this circuit that are flip-flop / LED flasher module and sound generator circuit modules which combined in one schematic diagram. This is a simple project for beginner which can be seen and can be heard.

Sound Generator with IC 555 circuit diagram

Sound Generator Components List:

R1, R7 ___________________ 470?
R2 _______________________ 1k?
R3 _______________________ 68?
R4, R6 ___________________ 56k?
R5 _______________________ 47k?
R8, R9 ___________________ 10k?
VR1 ______________________ 200? Potentiometer

C1, C2, C3 _______________ 10uF/16V
C4, C5 ___________________ 0.02uF (20nF)
C6 _______________________ 100uF/16V

Q1, Q2 ___________________ 2N3904
IC1 ______________________ 555 or 1455
LED1, LED2 _______________ LED

Good Luck 🙂

2 thoughts on “Sound Generator with IC 555

  1. vinod yadav

    what is the woark of ne555n ic and three pin of work

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