The more I learn about the modern elemental base, the more I am surprised at how easy it is now to make electronic devices that you could only dream of before. For example, the antenna amplifier in question has an operating frequency range from 50 MHz to 4000 MHz. Yes, almost 4 GHz! At the time of my youth, one could just dream of such a thing, and now such an amplifier on a tiny microcircuit can even be assembled by a novice radio amateur.

In kindergarten and school, at home and in the circle of “skillful hands” - everywhere and always, children are happy to make bright and interesting crafts, come up with unusual things to decorate a classroom or their room, make original gifts for friends and parents, prepare works for the exhibition or competition.

Usually, ordinary paint is used to protect the metal surface of the part or any workpiece from rust. However, not everything can be painted due to certain reasons. Therefore, one has to look for alternative methods. However, one does not have to go far. There is a very simple (and natural) tool for protecting against metal corrosion.

By the Victory Day holiday, everyone traditionally complements their clothes with St. George ribbons. As a rule, they create a loop, securing it with a clip, but you can make a unique and special brooch. To create an Asterisk brooch you need: - a piece of St. George’s ribbon. - scissors. - lighter. - glue gun. - one silver bead.

Hello friends. Today I will tell you how to make a small power amplifier on a tda2822m chip. Here is the circuit I found in the datasheet of the chip. We will make a stereo amplifier, that is, there will be two speakers - the right and left channels. Amplifier circuit We need: Chip TDA2822m. 4.7 ohm resistor (2 pcs.

A very useful and simple little thing can be done for your workshop in just a few minutes - this is a clamp from a piece of profile. With it, you can fix workpieces from both metal and wood. So if you suddenly needed to clamp the workpiece in several places, it will not be difficult to make several clamps for such work.

Spinners (antistress toys) were first invented in the early 90s, but only after 17 years the devices gained mass popularity. Already sold more than 50 million copies. As for their appointment, there is no consensus on this. Schoolchildren use them for entertainment, adults call spinners mini hand exercise machines that develop fine motor skills and relieve bad mood, young people are sure that this is another trend.

In this review, the author shares a cool and fresh idea - how to make an original "brick" wooden table with your own hands. Such a piece of furniture will look great both inside the house or cottage, and on the street. And for the manufacture of a "brick" table, even trim boards, which can be found in almost any workshop, are suitable.

Now you can use a ready-made special tank for the pond on the site, but there is always another alternative. For the pond near my house, I used an old acrylic corner bathtub with a volume of about 300 liters, having previously repaired cracks and technological holes. We begin the construction of the pond with the preparation of the place, we dig a hole so that the capacity is above the surface of 0.1 meters.

This homemade product is useful to all lovers of outdoor recreation. At the same time, it is quite budgetary, since available materials are used for its manufacture. As the basis of the entire structure, any old gas canister will be required. The main stages of work The first carefully cut the place of attachment of the handle and remove it.

The development of fine motor skills is always useful for both adults and children. Therefore, this type of creative work, such as creating a 3d flower from paper, will have a beneficial effect on fine motor skills. Well, a bonus is still useful somewhere else, as an option, as a regular craft to a child in a kindergarten or school. Therefore, stock up on a good mood and create with your child.

To make a piggy bank out of cardboard is not a new idea, but turning it into a mini attraction is already more interesting. There are many tricky mechanisms to replenish the capsules, the one that you will see is also very funny. Thanks to the transparent wall of the piggy bank, the movement of coins inside can be observed. DIY is not difficult to make with your own hands, all materials are easy to find.