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Audio Circuits

Simple Drummer Sound Circuit using IC 555

Last updated on 21 January 2026 by Admin-Lavi Leave a Comment

Today electronic sound circuits are very popular among the young generation. One such circuit which will benefit the beginners in electronic is a Simple Drummer Sound Circuit using IC 555. This circuit is made using IC 555 timer which is very cheap and easily available. It is widely used for sound and timing projects, so […]

Filed Under: Audio Circuits

Simple Two Transistor Buzzer Circuit

Last updated on 17 January 2026 by Admin-Lavi Leave a Comment

A buzzer is a small sound making device that is used in alarms, toys, and indicators. This Simple Two Transistor Buzzer Circuit is very simple and easy to make. It uses only two transistors and therefore, it is good for beginners. Also, it works with low voltage and because of this it is safe to […]

Filed Under: Alarm Circuits, Audio Circuits, Oscillator Circuits, Transistor Circuits

Bluetooth Controlled Police Siren Sound Circuit with Arduino

Last updated on 26 December 2025 by Admin-Lavi Leave a Comment

Nowadays, Arduino projects are very popular and they controls everything. They are easy to build and they are useful for learning electronics. This project is about Bluetooth Controlled Police Siren Sound Circuit with Arduino. Arduino UNO is the main controller and Bluetooth module is used for wireless control. With Bluetooth we can control lights and […]

Filed Under: Arduino Projects, Audio Circuits

9V Loud Speaker Sound Generator Circuit

Last updated on 25 December 2025 by Admin-Lavi Leave a Comment

This article explains about a 9V Loud Speaker Sound Generator Circuit. It is simple and is with low cost and it works on 9V DC power supply. It gives loud sound compared to simple buzzer. Therefore it is useful for alarms, door bells, alerts and projects. Here, common transistors are used so beginners can build […]

Filed Under: Audio Circuits, Oscillator Circuits

Simple Transistor Oscillator Speaker Circuit

Last updated on 25 December 2025 by Admin-Lavi Leave a Comment

Sound can be made using very few parts so many people think a buzzer is needed to make sound. However, this circuit proves something different. In this Simple Transistor Oscillator Speaker Circuit no buzzer is used. Instead a small speaker is driven by transistors and therefore the circuit itself creates sound. Moreover, it is very […]

Filed Under: Audio Circuits, Transistor Circuits

Toy Organ Circuit using Transistors

Last updated on 25 December 2025 by Admin-Lavi Leave a Comment

Sound can be made using very few electronic parts. This Toy Organ Circuit using Transistors shows how music is made electrically. The circuit uses only two transistors and simple components. So here no IC, no coding and no complex parts are needed. When different push buttons are pressed the different sound tones are produced. Because […]

Filed Under: Audio Circuits, Transistor Circuits

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