This power supply on the LM317 microcircuit does not require any special knowledge for assembly, and after proper installation of serviceable parts, it does not need to be adjusted. Despite its apparent simplicity, this unit is a reliable power source.

Over the past ten years, all active life has been centered around a large wooden structure for games in the backyard. This clumsy building really liked the children, like a pirate ship, an obstacle course, a refuge from persecution.

When you are away from civilization and water sources, you will probably want to use this method. Of course, if you want to survive. If you do not drink water, you may die from dehydration. If without food you can

For almost a year now, I began to replace all the lamps in the house with LED ones. The results pleased sometimes more, sometimes less, but one case led me to an interesting solution. Often did you or someone from your family accidentally overturn the table

Such a simple, but at the same time very effective regulator, can be assembled by almost anyone who can hold a soldering iron in their hands and at least slightly read the diagrams. Well, this site will help you fulfill your desire. The presented regulator regulates

One fine moment, taking my screwdriver out of the storage room, I found that it was not working. The batteries were discharged, the first thing I thought and put the screwdriver on charge. But as soon as I connected the charger to the battery, it immediately

The smartphone has long migrated from the category of ordinary phones, which are used purely for calls. Hundreds of different applications allow you to turn your smartphone into various digital devices, thereby greatly simplifying our lives. So today, I

An interesting and inexpensive project for your beloved. Believe me, if she likes to take a bath, then she will like this gift very much. To be able to use this shelf normally, it must be of suitable size. Therefore, pick up

Finally, I managed to pick up an empty 200-liter barrel, which I had been waiting for a long time. However, the wait did not become a reason for rejecting the idea of ​​making your own barbecue grill.

Almost all motorists are familiar with such a problem as the quick failure of LED lamps. Which are often put in the side lights, daytime running lights (DRL) or in other lights. As a rule, these LED lamps have low power and

Almost anyone who can even hold a soldering iron in their hands can do a water level sensor with their own hands.And this article will help you step by step, with the help of photos, to make an indicator of the water level in the tank with your own hands from simple and

I was tired of paying for the rental of a warehouse, and I wanted to put my garage in order, so I decided it was time to make racks. At first I thought about their acquisition, but considering how much they would cost, I had the idea to make them

In this workshop I will show how to make an inexpensive and simple desktop with drawers from plywood, in which you can store tools and other things.

So, we decided on the calculations. Plus them and get a figure - 29.5 cm. It is at such a depth that you should dig. Level the surface. To do this, pull the beacons around the perimeter of the digging. It is best to check the evenness of the earth with a two-meter

A luminaire made of phyto LEDs specially designed for lighting plants in greenhouses with a spectrum of 440-470 nm, and 630-670 nm. This is the very spectrum that is best absorbed by plants. Buy a lamp for growing plants of course

This project may scare off the apparent scale, but in the end it is not complicated. You just need to cut a couple of parts and put them together: everything is quite simple, but in the end you will find a blissful sense of work done.

A simple sharpener for kitchen knives, which you can do if you want to do it yourself in 5 minutes. For this, you will not need scarce parts and tools. This will be a very useful thing for your kitchen.

It is a powerful air purifier that uses G4 and H7 filters. The HEPA H7 filter can effectively collect plant pollen. This air purifier is designed to clean indoor air during allergy seasons.

Today I will tell you about a wonderful idea how to make a third hand for soldering with your own hands. This device will greatly facilitate the soldering process. The soldering holder will ensure the fixation of objects when working on precise projects. It's soldering

Each time I independently changed the oil in my van, I had difficulty replacing the oil filter. The reason is that to replace it, you need to unscrew the cover, on top of which there is a hexagonal nut similar to a nut

Good afternoon! Today we will focus on the original night light, which will serve as an excellent decoration for your windowsill. So let's get started! Based on a conventional 100-watt incandescent bulb.

Installing a plasterboard ceiling is one of the quick and easy ways to make it flat or give an unusual shape. This process contains several nuances, having studied which, you can do the work yourself. For this it is necessary

Mittens, in which the upper part is not tied, and the fingers remain open, are called mitts. They are definitely convenient in some situations, for example, when using a smartphone - because neither in gloves nor in closed mittens will work

This simplest audio frequency amplifier is capable of delivering 50 watts of power to each of the four channels. In total, it turns out 200 watts of sound power. And this, as it turned out, is not the limit. The microcircuit on which the amplifier is built can give 80