DIY do it yourself
Master classes, instructions, useful tips, recipes.
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Master classes:

A simple way to transfer a screwdriver from nickel-cadmium to lithium-ion batteries

Probably, every owner of a screwdriver had such a problem at least once: you charge your old battery, but after 5 minutes of operation, it sits down again. This is very unpleasant, but we are able to solve this problem with our own hands.

Wago terminal blocks: purpose, decoding of markings and subtleties of application

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

Germanium Transistor Amplifier

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

How to check grounding in 1 minute

I’ll tell you how to quickly, simply and efficiently check the availability and quality of your grounding in less than a minute. I want to make a reservation at once and clarify that this verification method is artisanal and prohibited by all manuals and rules on

DIY Mini DVB-T2 Antenna

If you live in a city, then you do not have to have a large and bulky TV antenna, especially throw it on the roof and pull the cable. DVB-T2 digital television channels can be perfectly received on the indoor, as the power

DIY mini flashlight keychain

Hello readers. Today I propose to consider just such an interesting homemade product. This is a miniature flashlight, and since its size is very modest, it can easily be hung on a bunch of keys. Surely there it will not hurt you, but it will also help

Simple and low-power amplifier on KT315

KT315 is the legendary domestic transistor, copies of which are present in large numbers at each amateur radio amateur. Not surprisingly - this is the very first mass-produced silicon transistor, you can find it in almost any

“Zero” and “earth”: what is the fundamental difference?

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

How to make a bag with a stand-alone charger

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

How to make a twisted wire harness

During construction or repair, it happens that we do not always know how to correctly calculate the quantity and consumption of building materials. It may happen that at the end of the repair, this or that material may be a bit short. Some citizens so

Water-powered flashlight

If you thought it was some kind of practical joke or joke, then you were mistaken. This flashlight really only works on water and on nothing else. Each of you will be able to repeat it and make yourself the same, especially since the scarce elements in

Do-it-yourself bor machine

The device boron cars is not the most difficult; engine and start button in the housing. But bor machines are of different types. It all depends on the manufacturer. Many manufacturers also mount a button to reduce speed. This is not an electric button, but a clean one.

USB charge that charges all gadgets in one go

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

Cheap workshop lighting fixtures

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

How to quickly clean copper wire from oxide

Great life hack for hams and more. Those who had to solder oxidized copper wires. Also, this cleanse method can be very useful for motorists.

Homemade probes for a multimeter

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

Simple three-voltage power supply

I decided to make from a computer power supply, a power supply for several voltages. There are many designs on the World Wide Web. In China, there are also ready-made solutions, such as consoles for the computer's power supply. I, having collected some

The easiest digital TV antenna

Analog television is a thing of the past, therefore, to maintain the ability to watch TV shows, a transition to DVB-T2 broadcasting is required. This requires the use of a specialized antenna, which is quite possible to manufacture

Modification of a flashlight (from AAA batteries to 18650 battery)

The selection and purchase of a flashlight is not an easy and tedious task. At least for me. I approach this business 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,

Power bank from a broken tablet

It's no secret that the tablet’s battery is very energy intensive. Otherwise, how to "feed" such a giant, having a large screen, powerful speakers and no less powerful modules Wi-Fi, Bluetooth and GPS ... It is very unpleasant that these devices break

Amplifier on the popular TDA2003 chip

This chip, TDA2003, has found wide application in literally all types of audio systems - it can be found in portable speakers, in car radios, in computer speakers, in televisions, and even in small music centers. So popular

We turn on the low-voltage soldering iron in 220 without a transformer

I have been using low-voltage soldering irons for a very long time. It so happened that I got a certain amount of them. They feed on safe 42 volts. Usually they are connected to a transformer, but I don’t have one in stock. I use for food

How to solder SMD elements manually

Every day, more and more radio amateurs use parts and components in their work SMD. Despite the sizes, it’s easier to work with them: you do not need to check the holes in the board, bite off long leads, etc. Master soldering SMD parts need

How to connect OLED I2C display to ARDUINO

Hello! Being an amateur - an electronics enthusiast, I am sure that all we do is electronic toys - homemade products, or large projects, all from curiosity and laziness. Curiosity seeks to understand and comprehend the immense, not known,
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«Do it yourself - do it yourself"- a site of interesting homemade products made from improvised materials and objects at home. Step-by-step master classes with photos and descriptions, technologies, examples of work - all that a real master or just a craftsman needs for needlework. Crafts of any complexity, a large selection of directions and ideas for creativity.

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