Electronics 2024, November

In the world of photography there are many interesting and incomprehensible things for the average user. However, professional photographers who have been specially trained in this craft are able to understand all this and produce pictures of excellent beauty. One such feature is the dynamic range of cameras. To the average user, this phrase does not mean anything. A professional photographer by this parameter can choose a good camera

The world of mobile computing has its own rules. A certain "elite" of manufacturers has formed. Therefore, it is very difficult for a new brand to break into the market. And if this happens, then such an event does not go unnoticed. It always causes some interest. Not at all with Digma laptops, reviews of which we will analyze in this material

Modern acoustic systems of acceptable quality are prohibitively expensive. Therefore, many people prefer to use Soviet speaker models. Indeed, in the days of the USSR they knew a lot about high-quality acoustic systems. At the service of music lovers were both the coolest "Amfitons" and the more modest "Radio Engineering". And in the budget segment, AS Vega ruled the ball. They were of low price and acceptable quality

Modern high-end speaker systems are very expensive. Not everyone has the money for such speakers. And then it makes sense to pay attention to Hi-End speakers from the past. Many of them, even in modern realities, can give odds to a large number of modern speakers. These are the Soyuz 50AC-012

Video connection between portable devices is a fiction of science fiction writers, which is being actively introduced into our lives today. And to organize video communication between stationary personal computers, webcams were invented, the latest models of which are produced with built-in microphones. What is it?

Of course, smartphones can shoot video, but the quality will be very far from what a good video camera can provide. However, you should not delve into the thicket of the market without clear guidelines. The article provides an overview of the best models of video cameras in 2018

In an effort to save energy, many people are switching to LED lamps. It is a durable and efficient device. However, it also has disadvantages. Why the LED lamp blinks will be discussed in the article

We present to your attention a list of the cheapest projectors that are distinguished by their quality component and the efficiency of their work

For more than ten years in a row, Tomahawk car alarms have been in great demand both among service center specialists and car owners. Distinctive features of the equipment produced under this brand are high quality and ease of service. In addition, at present, the Tomahawk alarm system, the price of which is, on average, three thousand rubles, is affordable for almost any car owner

An electronic tachometer is used to measure the speed of rotation of the engine shaft. This device is widely used in heavy industry, automobile and aircraft construction. The article describes the principle of operation of the device on the example of a simple circuit

The water level sensor is used to control the liquid level in various tanks. These devices are used to prevent floods, to control the rise in water levels in dams and reservoirs; in everyday life they are used in washing machines, in the organization of water supply and heating systems, etc

Let's try to figure out what cheap laser printers are, designate a list of the most successful models for home use and determine prices

Under the Soviet regime, the development of units for cooling products began only at the end of the thirties of the 20th century. The first Soviet refrigerator was made in 1937. The Kharkov Tractor Plant (KhTZ) became its manufacturer. That is why the model of this unit was named HTZ-120

Mobile air conditioner is a truly amazing invention of modern science, which makes it possible to create a comfortable microclimate in an office or apartment. This device is convenient because it does not require additional costs during the installation process, and its use is possible immediately after purchase. The mobile air conditioner is equipped with special wheels, which makes it quite easy to move it from place to place, installing it where you need it

Which of the car owners does not like to ride with the breeze, and even to the sounds of your favorite song? But in order to enjoy the high-quality sound of music, you should carefully consider the choice of speakers in the car. Consider what to look for when choosing, analyze the main types and types of acoustics, as well as the rating of acoustic systems depending on various indicators and user reviews

What is a trimmer? This word came to us from the English language and literally means “to put in order” or “to cut”. The very first such tool appeared in 1972. It was invented by a businessman who figured out how to cut the grass on the lawn without damaging the trees

Controllers themselves are useful devices. And in order to better understand this topic, it is necessary to work with a specific example. Therefore, we will consider the battery charge controller. What does he represent? How is it arranged? What are the job features?

The article will cover instructions for replacing cartridges in laser and inkjet printers, as well as methods for refilling and repairing. A conventional laser printer cartridge is a complex mechanism that ensures that paper is fed and printed normally. Anyone who has ever de alt with imaging devices knows how to fix minor breakdowns - paper jams, even refills. But what to do if there was a breakdown, out of the ordinary? This will be discussed in our article

Microwave oven today is in almost every home. It is convenient and comfortable to use it. However, not everyone has enough space in the kitchen to place it according to all the rules. Usually housewives put it where they like. At the same time, the question often arises of whether it is possible to put a microwave on the refrigerator

In most cases, instead of conventional incandescent paws, you can use LED strip as an economy. It not only illuminates the required space well, but also saves energy

Electronic levels, or digital, are devices designed to determine the angle of deviation of elements of various structures from a vertical or horizontal position. Today, these devices are the most in demand in the field of installation and construction work

To determine the difference in height between points in the construction area, a special device is used - a level. Modern devices are equipped with many additional functions, display and memory for recording measurements. The article describes the descriptions of electronic levels and their technical characteristics

It's hard to imagine cleaning an apartment without a vacuum cleaner. There are many varieties of this technique. The cyclone type of vacuum cleaner appeared not so long ago, but it has taken root well in the homes of our compatriots. What qualities does this variety have, should be considered in more detail

LED and fluorescent lamps of the T8 series are very different in parameters. To learn about their features, you should consider specific types of devices

There are several schemes for constructing radio receivers. Moreover, it does not matter for what purpose they are used - as a receiver of broadcasting stations or a signal in a control system kit. There are superheterodyne receivers and direct amplification. In the direct amplification receiver circuit, only one type of oscillation converter is used - sometimes even the simplest detector. In fact, this is a detector receiver, only slightly improved

The transistor amplifier, despite its already long history, remains a favorite subject of study for both beginners and veteran radio amateurs. And this is understandable. It is an indispensable component of the most popular amateur radio devices: radio receivers and low (sound) frequency amplifiers. We will look at how the simplest low-frequency transistor amplifiers are built

Haier TV model LE40K5000TF is a mid-range device and has fairly good technical specifications. It is perfect for creating a multimedia home theater. It is its parameters and the order of settings that will be discussed further

Does every radio amateur know how to ring a capacitor? How many people even imagine what kind of details they are, what they are used for and what is their principle of operation? Anyone who has been creating various electrical devices for a long time knows perfectly well what is at stake. Are there many of these?

In a wide variety of electrical and electronic circuits, a radio component with the beautiful name "reed switch" is used. What is it and how does it work?

In every cafe where there are many visitors, you can see a milk frother that turns milk into a thick and delicious foam. This foam is useful for making latte macchiato, latte and cappuccino. Read more about this interesting device below

A current relay is a device that is often used to signal overcurrent in a particular controlled circuit. It is also used to turn off the electrical circuit in the event of short circuits or overloads. The minimum current relay is used much less frequently. Such devices are designed to break the electrical circuit when a certain minimum current value is reached

Everyone who has been repairing electronic equipment knows that sometimes it is necessary to determine its value by the appearance of a resistor. Fortunately, manufacturers of electronic components have agreed among themselves, and there is a standard marking for resistors

In this article we will talk about one of the most popular audio systems still produced in the times of the USSR, which could not leave any of its owners indifferent. The S90 speakers, the technical characteristics of which are able to excite the mind to this day, have become one of the highest achievements of the Soviet company Radiotekhnika

The article is devoted to the burglar alarm for the apartment. The features of different systems, prices, as well as the nuances of installation and connection are considered

In normal power supply mode, energy is provided by the utility and delivered to the point of use. When its main source stops working, power from the second mains input or the backup generator used must be manually or automatically supplied to the loads, for which the ATS (automatic transfer of reserve) scheme serves. Its main task is to redistribute power from the power system to a backup power source

The article will tell you all about three-tariff meters. What is the benefit of using them, and what are the key differences from other models? Read about all this in the material

Automotive topics, like no other, are especially close to most of the male population of our vast Motherland. Many of us spend a lot of time and money, bringing our "iron friend" to the maximum possible state. This is especially true when it comes to car music and acoustics. In addition, we always want to try to somehow save money by doing at least part of the work with our own hands

Many refrigerators are made for automobiles. They differ in power, energy consumption and dimensions. Some modifications are installed near the armrest. There are models specifically for trunks. There are also devices that can be stored simply on the car seat

Fortunately, now housewives can breathe a sigh of relief: a modern device that preserves the taste of products is completely unpretentious in operation. Everyone can choose the refrigerator they like in terms of size, price, color and capacity. "Electrolux" is a brand known even to small children that produces appliances for domestic use

Fuses are used everywhere and everywhere - they are in technology, in a variety of electrical devices, cars, industrial equipment. There are many types of these elements. What are they for and what are their features? Consider the main types of fuses