Electronics. Page 25

The usual path of a home craftsman: we need a certain device, we begin the search for materials and manufacturing technology. We will consider the exact opposite option: there is an initial blank (a working, but unnecessary remote control), but it is not clear how

A 3-phase motor can be used to operate from a single-phase household AC network with a voltage of 220 volts. Rework is possible even if there is no extensive experience in electrical work with minimal installation skills. Additional costs

The network has repeatedly posted options for using a laptop adapter as a charger for car and other batteries, using a car lamp as a load resistor. It is possible, of course, and so, but much

To create the effect of alternately changing the RGB LEDs of the strip, it is proposed to assemble a simple electronic control circuit. The voltage from each of the three outputs of the self-oscillating ring multivibrator is alternately supplied to the input R, G or

Every person who assembles electronic circuits needs a universal power source that allows them to vary the output voltage over a wide range, control the current, and, if necessary, turn off the powered device. Similar in stores

Probably every screwdriver owner has had this problem at least once: you charge your old battery, but after 5 minutes of use it runs out again. This is very unpleasant, but we can solve this problem ourselves.

Twisting and soldering are a very reliable way to connect wires, but such methods are not always convenient. When performing electrical installations, many people prefer to use Wago clamps. They quickly connect wires and allow for repeated disassembly with

As you know, the first transistors that replaced radio tubes were germanium. Their invention played a big role in the development of electronics, making electronic devices more functional, economical and

I will tell you how to quickly, simply and effectively check the presence and quality of your grounding in just less than a minute. I would like to make a reservation right away and clarify that this verification method is artisanal and is prohibited by all guidelines and rules for

If you live in the city, then you don’t necessarily need to have a large and bulky TV antenna, much less throw it on the roof and pull the cable. Digital television channels of the DVB-T2 standard can be perfectly received in the room, thanks to the power

Hello readers. Today I propose for consideration this interesting homemade product. This is a miniature flashlight, and since its dimensions are very modest, it can easily be hung on a bunch of keys. He certainly won’t hinder you there, but he will also help

KT315 is a legendary domestic transistor, copies of which are present in large quantities in every radio amateur. Not surprising - after all, this is the very first mass-produced silicon transistor; you can find it in almost any

Historically, it so happened that in the Russian Federation, as well as in border states, the grounding principle is used, when the neutral conductor is connected to the ground loop. Many people may have a “legitimate” question: if they

The sun is an inexhaustible source of energy, and it is also environmentally friendly.Nowadays, extracting this same energy is not a problem, both for individual use and on an industrial scale. Solar modules come in a wide variety

During construction or renovation, it happens that we do not always know how to correctly calculate the quantity and consumption of building materials. It may happen that upon completion of the repair there may be a slight shortage of one or another material. Some citizens are like this

If you thought this was some kind of prank or joke, then you were mistaken. This pocket flashlight really only works on water and nothing else. Each of you can repeat it and make the same one for yourself, especially since the scarce elements in

The device of the bur machine is not the most complicated; motor and start button in the housing. But bur machines come in different types. It all depends on the manufacturer. Many manufacturers also install a button to reduce speed. This is not an electric button, but a clean one

In modern times, we have more and more electronic devices. Smartphones, tablets, smart watches, MP-3 players. Charging them at the same time sometimes becomes a task. You can, of course, take an extension cord for a certain number of sockets and organize

Work spaces and garages require good lighting. You can do it yourself, even without the skills of an electrician.I propose the design of a bright adjustable ceiling lamp based on LED strip.

An excellent life hack for radio amateurs and more. For those who had to solder oxidized copper wires. This cleaning method can also be very useful for motorists.

Quite often, such a nuisance occurs as a wire (cable) breaking near the plug. This happens especially often with wires that are subject to constant vibrations and movements. For example, headphones, chargers, multimeter probes and

I decided to make a multi-voltage power supply from a computer power supply. There are many designs on the World Wide Web. China also has ready-made solutions, such as attachments for a computer power supply. I, having collected a certain amount

Analog television is becoming a thing of the past, so to maintain the ability to watch TV shows, a transition to DVB-T2 television broadcasting is required. This requires the use of a specialized antenna, which can be manufactured

Selecting and purchasing a flashlight is a difficult and tedious task. At least for me. I approach this matter with all meticulousness and responsibility. It is necessary to take into account all the advantages and disadvantages of the product. Type and capacity of batteries,