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ExotElectronics

Discover practical electronics tutorials, DIY projects, component information, repair techniques, calculators, downloadable resources, and carefully selected electronic products—all in one place.

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Tutorials

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Projects

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Components

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Calculators

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Speaker Academy

Repair and build loudspeakers.

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Featured Tutorial

Build a High-Quality Class AB Audio Amplifier

Learn how a Class AB amplifier works, understand every stage of the circuit, choose the right components and build a reliable amplifier from start to finish.

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Popular Projects

Practical electronics projects with complete schematics, PCB layouts and step-by-step instructions.

100W Class AB Power Amplifier

Build a reliable high-fidelity Class AB amplifier for home audio.

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Bluetooth Speaker System

Design and assemble a modern Bluetooth speaker with quality sound.

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Adjustable Bench Power Supply

Build a laboratory power supply for electronics testing and repair.

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Component Spotlight

NE555 Timer IC

The legendary NE555 timer remains one of the most useful integrated circuits ever made. Learn how it works, discover its internal architecture, and build oscillators, timers, PWM generators and many practical circuits.

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