Electronics

Have you ever tried to design a circuit that produces sound? Here is the circuit that produces five tones. This is a simple toy piano

Nowadays, door bells are very common in every house. We daily observe different types of door bells are available in the market and they produce

This article describes the principle, design and operation of a digital stopwatch circuit. A digital stopwatch can be a circuit displaying the actual time in

This article is written to describe the design and working of a simple LED cube circuit. Most of the LED cube circuits are designed using

FM Radio circuit is the simple circuit that can be tuned to the required frequency locally. This article describes the circuit of FM radio circuit.

Audio tone control circuits are mainly used for 2 reasons. The first reason is to control the BANDWIDTH of the signal, which is entering into

A Smoke Detector is a smoke sensing device that indicates fire. Smoke Detectors are very common in homes, offices, schools and industries. Smoke Detectors are

Generally, street lights are switched on for whole night and during the day, they are switched off. But during the night time, street lights are

Have you ever thought of transmitting audio and video signals? Here is the simple circuit that amplifies and transmits audio, video signals. These are transmitted

An LC meter circuit is used to measure value of a reactive element like a capacitor or an inductor. This article describes the design and