An ordinary copper soldering iron soldering iron is not very suitable for soldering modern miniature circuit boards with SMD mounting. You can use it, unless, for soldering household appliances and printed circuit boards with output components, as they say, from case to case.

For the installation and repair of modern electronics, soldering stations are increasingly being used, which have gained great popularity both among professional electronic engineers and amateur radio enthusiasts. This article gives a brief overview of soldering stations, which will undoubtedly help to solve the question of which station is better to purchase.

The miniaturization of electronic components and the appearance of multi-pin microcircuits made it impossible to solder the microcircuit with a conventional soldering iron. Some microcircuits do not have conclusions in the classical sense, for example, microcircuits in BGA packages ...

It seems that there is no such office where Armstrong-type false ceilings are not used. So tightly they entered our life. As there can be no such organization, from a kindergarten to a business center, where 60 x 60 cm ceiling lamps with four fluorescent lamps, which are built into a suspended ceiling or laid on, would not be used for lighting.

Such lamps have become such a familiar attribute of modern average standard design that others are now difficult to imagine. The power of the lamps of such lamps: 4 x 18 W or 4 x 36 W. The cost reaches 5600 rubles. For the nineties, when incandescent lamps were widely used, the new daylight was a real breakthrough not only in design, but also in energy saving. However, technological progress did not stand still, and now LED lighting has become an alternative fluorescent tubes...

The timer socket is one of the most useful and at the same time affordable elements of home automation. Such a simple device can be very useful for you.

The timer socket can turn on the heater well in advance of your arrival, provide a comfortable temperature, and it can also control devices on a schedule. For example, the inhabitants of aquariums and terrariums need to turn on the light and compressor only at certain times. Also, in the long-term absence of the house, a timer socket with the function of random switching on, will allow you to create the effect of presence in the house, which will serve as a certain protection for your house. In these and many other cases, timer sockets are simply irreplaceable! There are two types of timers: electronic and mechanical. Mechanical timers are easier to operate. They are engaged in the work of the program ...

In industrial power supply, the term is used in the form of a simple abbreviation: ABP. Automatic input of power reserve is possible if there is an additional, backup source of power supply. In fact, such a backup source most often becomes an additional backup line, generator or battery installation. Automatic transition to backup power is carried out using relays or special electronic units.

But for a household network, such things seem superfluous: relays, electronic components, a backup line, a generator set ... It's cheaper and easier to sit without electricity, or in the light of a flickering lamp that suffers from unstable or undervoltage. However, it should be remembered that the household network of an apartment or private house in the vast majority of cases is single-phase. And the power line is almost always three-phase ...

Today, the opportunity to purchase any item makes the problem of choosing a gift particularly relevant. To make a really good gift, you should devote some time to choosing a gift. How to choose a gift to accurately bring joy to a loved one? Many of us are ready to spend huge sums of money on New Year's presents. But sometimes it turns out that an expensive gift is completely not valuable and not needed for the one who receives it. Therefore, choosing holiday souvenirs, do not forget about the interests and wishes of relatives and friends.

There is a wonderful gift option that will suit any person - this is a gift certificate. Today we cannot know exactly what a friend or girlfriend wants to receive as a present. But you can always roughly determine the sphere of preferences of the birthday man. If you find it difficult to choose a gift, buy a gift certificate ...

The human need for water is very high. In the modern world, it is needed almost everywhere. Therefore, many problems are associated with the problems of water supply, with its correct and safe consumption.

Eternal problems with interruptions in water supply, the need to provide a small farm in the water, the need for a reliable irrigation system of vegetable gardens, gardens, increased pressure in the water supply system are just some of the problems that Russians face. All of them affect the desire of consumers in any way to ensure permanent access to water resources.

Each of the situations comes out differently. However, drilling the own well is considered the best solution to this problem. But in this case, there is a need for the entire water supply system to ensure safety and control its working pressure ...

Installation boxes are intended for installation of plug sockets and electrical wiring switches of an apartment (house) in them. Installation boxes are mounted directly into the wall of the room, and a socket or light switch is installed in it.

Some types of installation boxes have enough space for mounting in them not only sockets (switches), but also other elements of the electrical wiring of the apartment. For example, if it is necessary to connect several sockets with a loop, a terminal block is installed and connected to the installation box, and then the socket.

Depending on the installation location, several types of installation boxes are distinguished: boxes for installation in drywall and hollow walls, boxes for brick or concrete walls, boxes intended for pouring into concrete (used in industrial enterprises). The first type of installation boxes is characterized by the presence of special clamps ...

In addition to electrical apparatuses of general use (starters, intermediate relays, switches, etc.), special control and control devices, for example, pressure relays, level control relays, jet relays, etc. are used to automate pumping installations.

Level control relays regulate the operation of pump starters and valves to control fluid levels. Such devices are able to maintain a fixed water level in tanks.

Modern liquid level control relays are electronic devices, most often of modular design, receiving signals from sensors, processing them according to a certain algorithm, and switching actuating elements connected to the relay output contacts (electromagnetic valves, pump motors). Since the maximum switched current of the output circuits of electronic level control relays usually does not exceed ...