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Audio Circuits

Arduino Piano Music Keyboard with Memory Circuit

Last updated on 23 June 2026 by Admin-Lavi Leave a Comment

This project is for Arduino Piano Music Keyboard with Memory Circuit and its main parts are Arduino Uno, push buttons, buzzer, LCD and resistors. When button is press then buzzer make piano sound, LCD show note name on screen and then we can record notes and play again later. Furthermore, it is small and fun […]

Filed Under: Arduino Projects, Audio Circuits

Single Transistor Theremin Oscillator Circuit

Last updated on 23 June 2026 by Admin-Lavi Leave a Comment

Theremin is one very old electronic music instrument, which make strange space type sound without touching any part; when human hand move near antenna or plate then the pitch of sound changes. In addition, this happen because hand change the capacitance value near the circuit. Also, in this article we will show very small and […]

Filed Under: Audio Circuits, Mini Projects, Oscillator Circuits, Radio Frequency, Transistor Circuits

DIY Simple Bluetooth Speaker Circuit

Last updated on 23 June 2026 by Admin-Lavi Leave a Comment

Today music is everywhere and it has become part of our daily life; people like to carry small portable speakers in bag, while travelling or in room. Also, building our own Bluetooth speaker is not difficult, we can assemble it with a few simple components, such as a battery, a speaker, and a Bluetooth module. […]

Filed Under: Audio Circuits, DIY Projects, Mini Projects

AM Radio Circuit using Transistors

Last updated on 22 June 2026 by Admin-Lavi Leave a Comment

This article show how make AM Radio Circuit using Transistor, as it uses easy parts like transistor, capacitor, resistor and inductor. Also, parts are easy to find and good to learn basic radio frequency RF, catch signals and to make sound louder. Circuit catch medium wave AM signals and changes AM signal to sound and […]

Filed Under: Audio Circuits, Hobby Circuits, Radio Frequency, Transistor Circuits

Low Cost AM Radio Receiver Circuit

Last updated on 22 June 2026 by Admin-Lavi Leave a Comment

This cheap and easy Low Cost AM Radio Receiver Circuit uses simple parts to make, it helps us get normal AM radio signals and then it uses 2N3904 transistor and LM386 amplifier to find and make AM signals louder. Also, circuit is good for beginners and people who want to learn about radio and electronics […]

Filed Under: Audio Circuits, DIY Projects, Radio Frequency

AM Radio Receiver Circuit using IC TA7642

Last updated on 22 June 2026 by Admin-Lavi Leave a Comment

TA7642 IC is very sensitive chip for AM radio, it needs few extra parts and works on low voltage; also circuit is good for small and efficient radios. In this post we will see AM Radio Receiver Circuit using IC TA7642 and here we have explained each part and have given easy steps to build. […]

Filed Under: Audio Circuits, DIY Projects, Radio Frequency

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