DIY electronics. Page 8

Light-emitting diode (LED) lamps have recently become widespread in our lives. And this is not surprising, since they have many advantages compared to other artificial light sources. Here are a few of them: 1. Cost-effective. 2.

Good afternoon, Dear Readers! Today we will talk about assembling a soldering station. So, let's go! It all started when I came across this transformer: it’s 26 Volts, 50 Watts.

Headphones are an essential accessory for every person these days! Many of us listen to them while playing sports, on the bus, or even on the way to work or school! But many of the Chinese headphones do not produce such good sound, so I decided

If you have an old computer power supply (ATX) at home, you shouldn’t throw it away. After all, it can be used to make an excellent power supply for home or laboratory purposes.Minimal modifications will be required and in the end you will get almost

In amateur radio practice, resistance welding is not often used, but it still happens. And when such a case comes, but there is neither the desire nor the time to make a good and large machine for spot welding. Yes, if you do it, then it will happen later

With this simple welding machine you can cut thin metals, weld copper wires, and engrave metal surfaces. Other applications can be found without any problems. This mini welding machine can be powered

A simple electric arc welding machine can be made by anyone at home, without using any specialized equipment or circuits. All we need is just two microwave ovens, which can be found on

Gradually, lighting devices are switching to LED lamps. This did not happen right away; there was a protracted transition period with the use of so-called housekeepers - compact gas-discharge light bulbs with a built-in power supply (driver) and a standard

The main advantage of this mini soldering iron is that it is powered by a 3.7 V battery. It is not connected to the network and you can easily take it with you. Of course, its power is not great, but it is quite enough to solder wires or

A mini drill can be used to drill holes in textolite boards for the output of radio elements. I personally built a mini drill for this purpose, but you can use it for other purposes as well.

Making a real solar battery at home is almost impossible. To do this, you need not only specialized factory equipment, but special chemicals that cannot be found so easily. But if you suddenly feel really impatient,

During my life I have seen many different mousetraps and rat traps. It’s not that I’m in any way interested in this, but I was just faced with removing mice from the house. I'll tell you how to make a mousetrap that will kill a mouse with an electric discharge.

What distinguishes this converter is that it provides a full sinusoidal voltage with a frequency of 50 Hz. The inverter converts 12 V DC to 220 V AC, frequency 50 Hz. It has a minimum number of components and small size.

A moon night light is a moon-shaped wall light that turns on automatically when it gets dark. The automatic switching circuit is built on only two transistors. A night light in the shape of a moon is very original, beautiful and unusual.

A very simple 50 kV converter, which essentially contains three elements.All components are available and can be easily found if desired. The high voltage converter can be used for various high voltage experiments.

Imagine that you have a device that can destroy any electronics from a distance. Agree, it looks like the script of some science fiction film. But this is not fantasy, but quite reality. Such a device will be able

A simple detector that will show whether a person is lying or telling the truth. Of course, it is far from a real, modern lie detector - a polygraph, but it deserves attention, since anyone can make it with their own hands. Like

Our life is unpredictable and the least expected can always happen. For example, a water leak may occur in a place that seemed particularly safe. In order to react in time and find out about such a water leak from the initial

Hi all! In this article I will tell you how to make a simple gas leak sensor with your own hands from available parts. Probably, now even any schoolchild knows that such a dangerous gas as methane has no odor, and it can be detected in the air without

Laser projectors can be divided into two main categories.Either they use diffraction glass/foil to project the pattern, or they have a system that moves the laser beam in XY directions, i.e. classic

This laboratory electronic bath has become simply an indispensable assistant for me, as a radio amateur. If you are involved in radio electronics, I sincerely recommend that you repeat it too. I often have to make printed circuit boards. Process

We often find ourselves in situations when the battery of our device (tablet, smartphone, portable speaker, etc.) runs out and we are far from the power supply. In this case, a power bank can help us, but not everyone can afford expensive ones.

Hi all. I want to tell you about my recent “craft,” namely a clock with gas-discharge indicators (GDI). Gas discharge indicators have long since sunk into oblivion; personally, even the “newest” ones are older than me. GRI was used mainly in watches and

In this master class I will be converting a floodlight with a motion sensor into a spotlight with a remote control. The motion sensor is certainly good, but in some places it is not as useful as remote activation. I am making this lantern