Simple circuits

It’s quite possible to make a powerful amplifier on a single LM3886 chip, mounted mounted, in 15-30 minutes. When using a good power supply, such an amplifier will easily produce up to 100 W of power per channel of clear and high-quality sound.

You can make a very simple LED police flasher yourself in about 15 minutes. There are no microcircuits or transistors in it. Even someone who is very vaguely familiar with electronics can assemble this circuit. The role of the master oscillator will be

This flasher circuit has a number of very significant advantages. Firstly, it is simplicity, and secondly, power: the switched current can be up to 50 A, which is clearly not small. Thirdly: the circuit is connected to the llama circuit break and does not require additional power. AND

Every electronics engineer knows that an LED will not glow at a voltage below 2 V.Using this simple circuit, you can make an LED light from one 1.5 volt battery.

There are many different LED flasher circuits on the Internet - simple, complex, with or without microcircuits. But a regular flashing LED will no longer surprise anyone, so there is a need to assemble something more advanced. For example,

To power various electronic devices and DIY circuits, you need a power source whose output voltage can be adjusted within a wide range. With its help, you can observe how the circuit behaves under one or another

Quite often, residents of apartment buildings need to attach a picture, hanger, shelf or some other piece of furniture to the wall of their apartment. To do this, mark a point on the wall and drill a small hole

As you know, all modern cars are equipped with direction indicators, which are a flashing light bulb or LED on the left or right side of the body. Sometimes a standard electromechanical relay fails, and getting a powerful one

The current-carrying windings of the electric motor are led out into the distribution box. The winding terminals form two parallel rows, each marked with the letter C and numbers from 1 to 6.This is done to mark the beginning and end of all three windings.

Cooling fans are now found in many household appliances, be it computers, stereo systems, or home theaters. They do their job well, cool the heating elements, but at the same time they emit a heart-rending, and very

As is known, in addition to the visible light spectrum, there is also infrared radiation, which is not perceived by the human eye. It is often used in remote controls to transmit various commands. Interesting fact - to

Sometimes you really want to create a bright light show at home, invite friends, turn up the music louder and plunge into the atmosphere of a disco. There are usually no problems with music and friends, but organizing color music can be quite problematic.

Many modern audio systems, be it a stereo system, a home theater, or even a portable speaker for a telephone, have an equalizer, or, in other words, a tone block. With its help, you can adjust the frequency response of the signal, i.e. change quantity

Hello friends, today we’ll talk about a homemade metal detector. First, I found a circuit on the Internet based on the NE555P timer chip, but it seemed too complicated to me for those who do not understand the symbols on radio circuits, and even display it on

Hello friends.Today I will tell you how to make a small power amplifier using the tda2822m chip. Here is the circuit that I found in the datasheet of the chip. We will make a stereo amplifier, that is, there will be two speakers - right and left channels.

I'll show you a way to make an LED light up without connecting wires to it. To do this, you will need to assemble a simple device using a single transistor. And you can prank your friends by showing them your magical abilities.

This is a good and inexpensive way to make an adjustable power supply without much expense or effort. For example, I have a good power supply of 12 V and 2 A. I will assemble an attachment for it, with which I can regulate the voltage in

You only need two components to build a simple inverter that converts 12V DC to 220V AC. Absolutely no expensive or scarce elements or parts. Everything can be assembled in 5 minutes! You don't even need to solder! Twisted

Most Soviet and foreign radio amateurs are very familiar with the analog integrated timer SE555/NE555 (KR1006), produced by Signetics Corporation since the distant 1971. It is difficult to list for what purposes it is not

This tutorial will show you how you can get 5V USB from a 9V battery and use it to charge your mobile phone.The photo shows the assembled circuit in action, but this is not the final version, since I will also make a housing for it at the end.

I want to share with you my example of how I made a simple keyboard backlight for my favorite computer. This backlight does not shine into the eyes and has electronic brightness adjustment. It can be connected either to the power supply itself

This is a very simple attachment circuit for your existing charger. Which will monitor the battery charge voltage and, when the set level is reached, disconnect it from the charger, thereby preventing

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

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