Consumer Electronics and Tips

AV cables

When we buy audio and video equipment, we need to know what cables will connect the various devices in a harmonious audio-visual system, so that…

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Photoelectric sensors. Light sensors. Photoelectric switches.

Photoelectric sensors, also called photosensitive switches, serve to automatically turn on outdoor lighting in reduced ambient light. They can be integrated into the luminaire itself…

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Multimeter. Usage

Мultimeters are among the most common measuring instruments after clocks and thermometers. The device was invented in 1820, in the form of a galvanometer. It…

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Frequency inverter

Induction three-phase motors are widely used in industry because of their simple structure, extremely high reliability and low cost. The speed of the induction three-phase…

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Liquid level controller with a float

In industry various devices and systems are used to regulate liquid levels – electronic, electrical, mercury, electromechanical and mechanical. Electronic ones are the most accurate,…

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Vehicle audio

Most modern cars have a built-in audio system with speakers in the doors and a player in the dashboard, but very often the factory-made audio…

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Solar panels controller

Many people think that the installation of a solar system is complicated, expensive and of limited efficiency and therefore they do not yet have one.…

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Computer cooling fans

Types of computer fans Computers are equipped with different cooling systems that spread the excess heat generated by the components, the main systems including CPU…

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Motor start capacitor

Motor start capacitors are designed for starting AC induction motors. Start capacitors have two essential roles: 1.They reduce sparking between the contacts. 2. They provide…

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Design and construction of power supply for video-surveillance systems

One of the main problems that need to be resolved in the design and construction of systems for video-surveillance is unconditionally the provision of power…

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