The principle of operation, advantages, similar heating appliances.

Electric radiators with their appearance resemble water specimens. Heat is generated in them when electric current passes through the heating element of the radiator. It is this heat that warms us.

As you know, electrical energy can be quite easily controlled. Therefore, heating systems equipped with electric radiators make it possible to regulate the indoor climate.

As noted above, electric radiators are similar to ordinary ones both in appearance and in principle of operation. The difference is that instead of water, an electric current is used. In order to transfer heat from the heating element to the walls, various liquids are used, most often this is oil. Such radiators can be controlled both through a thermostat ...

Sometimes, with a reduced voltage in the network or soldering of massive parts, it becomes simply impossible to use a soldering iron. Here the power regulator for a soldering iron can come to the rescue.

There are many guides and articles on how to perform high-quality soldering. In addition to using high-quality fluxes and solders, the quality of soldering largely depends on the temperature of the soldering iron.

There are many schemes for regulating the power of a soldering iron: from the simplest inclusion of a diode in series with a soldering iron to very complex temperature-stabilizing devices. But, unfortunately, all such devices can only work on lowering the power, i.e. power regulation occurs from 0 ... 100% or 50 ... 100% ...

Carbon thermostat UNIMAT-a new system for the manufacture of underfloor heating, space heating. It has a unique adaptability property and saves energy.

One of the leading companies in South Korea - GT3 has developed and launched the production of a new system for underfloor heating. This carbon rod based system is called Unimat. Another name for this system is “thermomat”.

Using the Unimat heating system, it is possible to create heating in a room of any size and shape due to the fact that the Unimat heating system is based on the principles of infrared radiation.

Structurally, UNIMAT thermomat consists of carbon-fiber rods connected in parallel and is available in rolls up to 30 m long. The rods are designed with a protective coating that protects them from aggressive substances and makes the entire system electrically safe ...

Unusual use of the adjustable zener diode TL431. Simple temperature controller. Description and scheme

Anyone who has ever been involved in the repair of modern computer power supplies or various chargers - for cell phones, for charging "finger" AAA and AA size batteries is well aware of the small detail TL431. This is the so-called adjustable zener diode (domestic analogue of KR142EN19A). Here it truly can be said: "Small spool, yes dear."

The logic of the Zener diode is as follows: when the voltage on the control electrode exceeds 2.5 V (set by the internal reference voltage), the Zener diode, which is essentially a microcircuit, is open. In this state, current flows through it and the load. If this voltage becomes slightly less than the specified threshold, the zener diode closes and disconnects the load ...

In this article we will talk about living “receivers” of the electromagnetic field, about what electromagnetic waves have learned to perceive in the process of evolution living things and what kind of “devices” they have for this.

Electromagnetic waves permeate us. Their spectrum is wide: from rays with a wavelength of less than 10 - 13 m to radio waves whose length is measured in kilometers. However, living creatures for photobiological processes use only a narrow band of the electromagnetic spectrum from 300 to 900 nm.

The Earth’s atmosphere cuts off, as a filter, life-threatening electromagnetic waves from our luminary. Rays shorter than 290 nm, hard ultraviolet, are trapped in the upper layers of the atmosphere by ozone, and the long-wave sizzling radiation is absorbed by carbon dioxide, water vapor and ozone.

In the process of evolution, "animals" appeared in many animals and even plants, which capture rays from 300 to 900 nm, among them - the eyes ...

Do-it-yourself replacement of electrical wiring in an apartment, private house. Save time and money.

If you started an apartment or house repair, it is advisable to change the electrical wiring. Why it is desirable, because in the 70-80s no one counted on the electrical equipment that is now used in our apartments, and even more so in houses, and repairs were usually made cosmetic.

Nowadays, a lot of household appliances have appeared, such as washing machines, coffee makers, electric kettles, microwave ovens, electric ovens, bread makers, you can list the names of this equipment for a long time, and the question arises of how the old electrical wiring can withstand this technique, with an old power shield, in which there are usually two traffic jams. For this reason, it is necessary to replace the old aluminum wiring with a new, preferably copper ...

Almost every beginner amateur radio seeks at the beginning of his work to construct a network power supply, so that later it can be used to power various experimental devices. And of course, I would like this power supply to “tell” about the danger of failure of individual nodes in case of installation errors or malfunctions.

To date, there are many schemes, including with an indication of a short circuit at the output. In most cases, such an indicator is usually an incandescent lamp included in the load gap. But with this inclusion, we increase the input resistance of the power source or, more simply, limit the current, which in most cases, of course, is acceptable, but not at all desirable ...

Electric ludilka, food: 220 volts. Other name: Chumichka, soldering iron.

Independent manufacture of a simple and reliable electrical appliance designed for tinning copper wires, cable leads with tin-lead solder. It will be useful primarily for electricians, electricians. Electric tinplate tested over many years of use.

Electric tinning allows tinning of wire with a cross section of up to 35 mm².

Size of the tin: long (with handle) - 200 mm, height - 80 mm, cylinder diameter - 70 mm.

Advantages: cheap to manufacture, mobility, low weight, in the off state for a long time keeps the operating temperature, the ability to work outdoors, fast heating ...