Master classes:
Installation of a plastic door
Today, in almost all stores and shopping centers, as well as in private homes, people install metal-plastic doors. These doors replaced old wooden or metal doors. Plastic doors have a neat exterior
Current Indicator
There is a need to track the presence of a current flowing in a circuit in two states: either there is or not. Example: you are charging a battery with a built-in charging controller, connected to a power source, but how to control the process? You can of course
We sew from jeans a cover on a sofa
Nowadays, jeans are worn by everyone - from grandparents to grandchildren and completely baby. Bought, vilified, then worn trousers (usually "in step") - buy new ones. The most beautiful part of jeans at the same time remains almost new. Embossed seams,
Cake from Kinder "Children's happiness"
Small bars of chocolates for children can turn into a great gift for a child. Children are not interested in gifts such as money; it’s better to change the money for sweets in the store and make a cake out of the kinders with your own hands. In terms of money, such
Red squirrel from a women's shirt
From old things that do not look completely worn out but are not used, you can make a new and beautiful thing with your own hands. For example, you can make a decoration for a home or a car, a key chain or a Christmas tree toy. Or you can make beautiful
Simple induction heater 12 V
A simple induction heater consists of a powerful high-frequency generator and a low-resistance coil coil, which is the load of the generator. A self-excited oscillator generates pulses based on the resonant frequency of the circuit. As a result
How to charge a car battery with a laptop power supply
This article is from the category - every motorist needs to know. Very soon, winter will surprise many owners of a car with an old battery: when attempts to get their own steel horse will fail. The result will be
Do-it-yourself bow tie
An original and perfect image cannot be created without stylish accessories. But the prices are so high that not everyone can afford to buy a bracelet or a suitable butterfly. However, this does not matter, because any accessory can be created
DIY sugar crystals
I show you a simple and funny chemical experiment. We used to do it at school, just take salt and grow salt crystals. In the same example, we take sugar and grow crystals from it. It will be a candy, which in the end will be
Sensitive microphone for computer
The simplest computer microphone is a Chinese capsule connected to the input. This microphone capsule is also powered by a computer input. It consists of a condenser microphone with an amplifier on a field effect transistor. The sensitivity of such a capsule
Satin Ribbon Dahlia
Kanzashi dahlia made of satin ribbons is an exquisite decoration that can be used as a decor for a hairpin / elastic band for hair, attached to the chest as a brooch / boutonniere or sewn onto a belt in the form of a festive element. Regardless
solar water heater
A solar water heater is also called a solar collector. It serves to heat running water. The simplest solar heater is a barrel painted black and filled with water. Black absorbs solar energy better
DIY LED lights
Gradually, lighting devices switch to LED lamps. This did not happen right away, there was a protracted transition period with the use of the so-called housekeepers - compact gas discharge bulbs with a built-in power supply (driver) and standard
Orchid - Christmas decoration for hair
Quite a bit is left before the beginning of the New Year and it is time to think about a festive dress and a hairstyle. Recently, it has become very fashionable to decorate hair with flowers, but they are not cheap. In the master class, we propose to make a stiletto orchid flower
Simple Li-ion Battery Discharge Indicator
How tightly Li-ion batteries entered our lives. The fact that they are used in almost all microprocessor electronics is already the norm. So radio amateurs have long taken them into service and use them in their homemade products. Contribute to this
Felt cactus in a pot
Such a decorative felt cactus with a bright flower can be a wonderful decoration on your table. It can also be used as a needle bed. Making a cactus in a pot requires a minimum of sewing skills.
garden lamp
Today I will show how to make a simple lamp for the garden, arbors, verandas. Such a summer garden lamp has a stunning view, it gives cosiness and mystery to wooden structures. A very simple design in the literal sense of "cheap",
Hemisphere shelf
Such a shelf will fit perfectly into the middle of a bare wall, remove the appearance of emptiness and make your home more comfortable and functional. Books, photo frames, various figurines and much more can be put on the shelf. The shelf has zoning, as a result you can
Children's sundress from mother's trousers
Sometimes it happens that we stop wearing a thing because of a broken hardware or a single speck, but in a very visible place. It would seem that the fabric is still good, but what can you do. Of course, the lock can be replaced in the nearest studio, and
Simple automatic adjuster
Here is a simple diagram for automatically turning on the fan and controlling its speed depending on the temperature of the sensor. This simplest circuit, consisting of only two elements, can be used in your amplifiers, power supplies, computers and
New Year card with Christmas tree inside
We all perfectly remember the magical children's books in which there are three-dimensional images. Why not use this technique to make New Year's cards? In the presence of a small amount of time, simple devices and with
Device for watering and feeding apple trees
An apple tree is a decoration of any garden. With proper care, the tree will delight you with an abundant harvest of excellent fruits. Experts recommend watering the apple tree at least 4 times per season. If there is drought, then watering the tree is not easy. Dry earth does not absorb well
Simple flasher on one transistor
There is a strong need to make the LED blink, in order to enhance the attraction of human attention to the signal. But to make a complex scheme, there is simply no time and place to place radio elements. I will show you a diagram consisting of only three, which
Needlework box
Even of the simplest things that we do not pay attention to, we consider garbage, you can do something worthwhile, unlike anything else. If, for example, you connect an ordinary cardboard box that was already going on a trip to the trash