How to make

Tools

In our everyday lives we ​​often have to do minor repairs of our homes or cars, which do not require any special qualifications or skills,…

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LED panels

LED panels are a relatively new development of manufacturers of LED lighting, which appeared on the market to meet the demand for lighting for suspended…

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Transistor

The name “transistor” was introduced by John Pierce, who combined the words “transfer” and “resistor”. Regarding the invention of the first transistor things are a…

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How to crimp a network cable?

If you have to connect two computers, you will need Ethernet (LAN cable). The cables with terminals, which you can buy in stores, i.e. the…

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Ammeter

An ammeter is a device used to directly measure electric current in amperes. The electric current represents a directed movement of free electrons under the…

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DC converters

As mentioned in the previous article, there are converters which transform DC. These converters are normally used in vehicles that run on batteries providing 24…

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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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Emergency supply for circulator pumps and fireplaces with water jacket

During the working process of fireplaces with water jackets connected to a central heating, the uninterrupted operation of the water circulator pump is essential. If this…

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