Transistor devices
Electronic devices Tech one Transistors

Everyday Devices That Use Transistors (And You Probably Didn’t Notice)

Most people never think about transistors. They’re too small to see, hidden away inside the gadgets we use every day. But without them, modern electronics wouldn’t exist. From the phone in your pocket to the microwave in your kitchen, transistors quietly do the heavy lifting. So, what exactly are they, and where do you find […]

Why Electronic Calculators Are Still Useful
Electronic devices Gadgets Tech one

Are Electronic Calculators Still Relevant in the Age of Smartphones?

We’re surrounded by lots of “smart” things: phones that do more than we ever expected, apps that solve equations, graph functions with a tap, or even voice-command calculators. With all that power in our hands, it’s fair to wonder—are old-school electronic calculators still useful? Turns out, the answer is yes. The Invention of Electronic Calculators […]

Clap Switch Circuit
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4 Simple Clap Switch Circuits Using NE555 Timer, CD4017 IC & Transistors

A clap switch circuit is a popular DIY electronics project that lets you control an electronic device by clapping your hands. The circuit uses the sound of a clap as a trigger to turn the device ON or OFF. It finds wide use in home automation, interactive projects, and temporary lighting solutions. In this article, […]

Optocoupler Optoisolator Photocoupler
Active components Digital Electronics Diodes Electronics tutorial Integrated circuits (ICs) Power Electronics Protection Circuits Transistors

Photocoupler (Optocoupler / Optoisolator) – Construction, Working, Types & Applications

In modern electronics, signal isolation between different parts of a circuit is crucial for protection, noise reduction, and system stability. Optocouplers, also known as optoisolators, play a vital role in achieving this electrical isolation while allowing signal transmission. This article provides a thorough exploration of optocouplers (Optoisolator / Photocoupler), including their construction, working principles, advantages, […]