Electronics. Page 32

Such a device can be made quite quickly and simply. Complex and expensive parts are not required, but despite this, the device can be very useful in protecting your favorite “horse”. Currently, anti-theft devices have gone the way

Have you ever wanted to check your radioactivity levels? Or maybe you wanted to prepare for the nuclear Apocalypse? Then this master class on making a Geiger counter is just for you. I'll show you how to make a very simple and cheap counter

The circuit presented in this article is very easy to repeat and should not cause any difficulties in assembly. It can be used in various devices for sound notification. For example, alarms, sound duplication of signals

Anyone who has ever wondered “why a battery fails” knows that most batteries fail precisely because of sulfation of the plates.All lead-acid batteries are susceptible to this phenomenon. I was surprised by the ease of operation

A very simple third-hand soldering jig is fairly easy to assemble from a few common components. It will only take you 15 minutes and you will have an easy-to-use device with which you will not only

It has long been proven that flat antennas are good at receiving terrestrial digital television signals with frequency modulation based on COFDM technology. This gave me the idea to make a simple outdoor antenna from a plastic pipe and a metal

So we're going to make a small wind generator. It can be made at home. 90% of the parts are made of plastic pipes and fittings, so it can be easily disassembled for transportation and reassembled. Let's start.

The simplest LED brightness control circuit presented in this article can be successfully used in car tuning, or simply to increase comfort in the car at night, for example, to illuminate the instrument panel, glove compartments, etc.

This is a short tutorial on how to make a relatively small, inexpensive, and fun smoke machine that can be used for pranks, magic tricks, air current research, and anything else you can think of.

You can assemble such a simple and portable speaker with your own hands from scrap materials, unnecessary spare parts and a couple of products from Aliexpress. All you need is straight arms and a little perseverance...

Converting an old fluorescent lamp into an emergency LED lamp for the garage. This very practical and economical lamp will certainly come in handy in any garage, especially one where the power is often cut off. You can use it at home too, because

A do-it-yourself device using a single transistor can be made by almost anyone who wants it and makes a little effort to purchase very inexpensive and not numerous components and solder them into a circuit. It is used for

According to statistics, more than half of batteries fail due to plate sulfation. I won’t go into detail about the reasons why this phenomenon occurs, but in a small part it is due to improper use of the battery. And in

When you have a CNC machine and modern power tools, making a transparent case from wood and plexiglass for the power supply (and other products) with your own hands is not so difficult. But how to get out of a situation if something like this

This power supply on the LM317 chip does not require any special knowledge for assembly, and after proper installation from serviceable parts, it does not require adjustment. Despite its apparent simplicity, this unit is a reliable power source.

It's been almost a year since I started replacing all the lamps in the house with LED ones. The results were sometimes more pleasing, sometimes less, but one incident led me to an interesting decision. How often have you or someone in your family accidentally knocked over a tabletop?

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 even slightly read the diagrams. Well, this site will help you fulfill your desire. The presented regulator regulates

One day, when I took my screwdriver out of the closet, I discovered that it didn’t work. The batteries were dead, the first thing I thought was and put the screwdriver on charge. But as soon as I connected the charger to the battery, it immediately

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

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

Today I will tell you about a great idea on how you can make a third arm for soldering with your own hands. This device will greatly facilitate the soldering process. The soldering holder will keep objects in place when working on precision projects. This is soldering

Good afternoon Today we will talk about an original night light that will serve as an excellent decoration for your windowsill. So let's get started! The basis is an ordinary 100-watt incandescent light bulb.

This is the simplest audio amplifier, capable of delivering 50 watts of power to each of the four channels. This adds up to 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

Nowadays, reliability and practicality are valued. More and more electronics are being made using Li-ion batteries.Although the devices are more expensive than those using the same lead-acid or Ni-cd batteries. I decided to modify the old flashlights with