Electronics. Page 33

You will need just one chip to build a simple and complete FM receiver that is capable of receiving radio stations in the range of 75-120 MHz. The FM receiver contains a minimum of parts, and its configuration, after assembly, is reduced to a minimum. So

The stabilized power supply discussed below is one of the first devices that are assembled by novice radio amateurs. This is a very simple but very useful device. Its assembly does not require expensive components that

When a laser printer is available, radio amateurs use a printed circuit board manufacturing technology called LUT. However, such a device is not available in every home, since even in our time it is quite expensive. More

To use a power transformer in stock, you need to know its key characteristics as accurately as possible. There are almost never any difficulties in solving this problem if the markings are preserved on the product. Required

The more I understand the modern element base, the more I am amazed at how easy it is now to make electronic devices that previously could only be dreamed of. For example, the antenna amplifier that will be discussed has a working

A super simple and super quick to make antenna from a coaxial cable for receiving digital television channels can be made with your own hands in about 5 minutes. For this you will need absolutely nothing except the cable itself. And this is the main plus

For the New Year, you want to decorate your house in an original way: so that it’s not like your neighbors’, and of course, not “like last time.” With the help of LED garlands offered for sale, you can create interesting compositions, but the price of the issue cancels out the bold ones

Radio amateurs have long chosen such an innovation as solder paste. It was originally invented for soldering SMD components during machine assembly of boards. But now many people use this paste for ordinary manual soldering of parts, wires, metals, etc.

I would say that quite often you come across wires and parts that are practically not tinned with ordinary rosin, even in an alcohol solution. And the point here is not the oxide film that formed during long-term storage, but rather the

I have long had the idea of ​​​​making myself a backup power source using a battery, a kind of high-capacity “Power Bank” with a voltage of 12 V. You can take it with you on a hike or fishing and charge your phone, laptop, flashlight, etc.

To assemble a mini soldering iron from a regular lighter you will need about 15 minutes of your time. With this soldering iron you can solder both radio elements and wires. This homemade product will definitely help you out in an emergency.

A very powerful LED strobe light that will perfectly complement any disco dance floor. A strobe light was built on three LED matrices with a total power of 150 W.

Sometimes you need to unsolder a microcircuit with a large number of legs. It is almost impossible to do this with a regular soldering iron without damaging the tracks or the microcircuit. This operation is usually done using a special hot air gun for soldering or infrared

A very simple three-channel RGB color music on LEDs does not contain scarce or expensive components.All elements can be found in anyone, even the youngest radio amateur. The operating principle of color music is classic and has become truly

This circuit of a shortwave radio station contains only three transistors. The simplest walkie talkie for beginner radio amateurs. The design was taken from an old magazine, but it has not lost a bit of its relevance.

Greetings, dear friends! In this article I will show and tell you how to make a very simple tester for testing radio components such as diodes, transistors, capacitors, LEDs, incandescent lamps, inductors and much more.

In this article, I will tell you how to make a tester out of a smartphone to test electrical circuits for open circuits or short circuits. In fact, I will make an attachment for a cell phone (more likely even an adapter with probes), with the help of which

It's no secret that beginning radio amateurs don't always have expensive measuring equipment at hand. For example, an oscilloscope, which even on the Chinese market, the cheapest model costs about several thousand. Sometimes an oscilloscope is needed for

When I was young, I had a Soviet-made instant-heating soldering iron. In appearance it looked like a pistol. The soldering tip was made of thick copper wire.Its design was simple: a transformer with two windings - network

Very often, when building various electrical generators or motors, it is necessary to determine the pole of a magnet. Almost every person, from school physics lessons, knows that a magnet has two poles: north (indicated in blue by the letter

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.

I'd say it's just a super simple amp that contains all four elements and puts out 40 watts of power into two channels! 4 parts and 40 W x 2 power output Karl! This is a godsend for car enthusiasts, since the amplifier is powered by 12 Volts, full

One of the simplest circuits in amateur radio electronics is an LED flasher on a single transistor. Its production can be done by any beginner who has a minimum soldering kit and half an hour of time.