Electronics. Page 24

A supercapacitor or ionistor is something between a battery and a regular capacitor. It has many advantages that a rechargeable battery does not have. Therefore, I will introduce you to a fully working prototype of a battery for a car at

In radio-electronic equipment, an electronic switch is part of the control elements of the device. These can be household appliances such as: TV, microwave oven, monitor, computer, amplifier, etc., as well as industrial devices, blocks

Surely, when working with batteries to replace them, you needed resistance welding. Since it is very undesirable to solder lithium-ion batteries with regular solder, there is a danger of overheating. Buy or make expensive equipment for two or three

Hi all! My name is Max. Today I want to tell you how you can build a housing for an acoustic speaker from an old tire.Thoroughly wash the tire from dirt using a brush and detergent.

A supercapacitor (also known as an ionistor) is almost the same capacitor, only with a large capacity comparable to a battery. I made a 12 V battery from such ionistors, which can be used in various devices. And it will last longer

There was a need to charge the car battery. You can take LBP, but I use it in the workshop. I decided to build a charger for the garage. Thinking through the design, I decided to focus on redesigning the computer's power supply.

So, let's talk about how to solder aluminum. Those who have faced this task know that aluminum is difficult to solder. This is due to a thin oxide film that quickly forms on the surface of this metal in the open air. Therefore for soldering

Hello, friends! I want to tell you how you can create something useful using an old mobile phone. Namely, this will be the simplest GSM alarm, with which you can remotely control various objects, such as

Let's talk about the introduction of wireless technologies. Specifically, we will talk about sound transmission via Bluetooth. For example, there is an old radio in your car that never even dreamed of Bluetooth.What can be done in this situation? Of course you can buy

The phyto LED matrix for illuminating plants, having its own power driver, is connected directly to the 220 V network. It works for almost half a day every day, while its body gets very hot. Required cooling matrix attached to

I want to share with you an idea on how you can use the cassette deck of a radio or music center. Few people have such equipment left in their house, which lies as a useless burden due to the fact that magnetic recording of music on tape cassettes

Sometimes there is a situation where you need to charge a battery of a certain size, but we have a charger for a different size. There is a huge range of chargers in stores, both for specific batteries and universal ones,

Almost all good modern indoor antennas have a signal amplifier built inside. And this is another hanging wire, in addition to the antenna cable. Because the amplifier inside the antenna requires electricity to work well. It could be like

Electricity creates comfort, but becomes dangerous if there is a power failure. A short circuit of potentials sharply increases the current beyond the permissible value.The wires overheat, which can lead to a fire. Decline

Nowadays, SMD LEDs are increasingly used. In household light bulbs, LEDs 2835, 5530, 5050 are mainly used. The printed circuit board consists of an aluminum plate on which an insulating material is applied. The insulator has tracks with

Mice and rats accompany humans everywhere. They destroy food and crops in dachas and fields, carry viruses of severe infections and even gnaw signal wires in devices.

This powerful electric bike can comfortably carry two people. Unlike the classic design of an electric bicycle with a motor-wheel, this model uses an asynchronous electric motor. The result is increased efficiency and strong starting torque.

You can make many different homemade products based on sound electronic modules. This could be doorbells, toys that speak text or some musical fragments, voice acting of important signals or car parameters, or

Progress does not stand still and a simple heat shrink for wire insulation will no longer surprise anyone. Therefore, now we will talk about a completely new and innovative method of connecting two wires without soldering, twisting in a couple of seconds. Now on sale

Sometimes, in order to make some switches with the remote control, you need to get up and come almost close to the device being controlled. And sometimes, you have to rotate the remote control and frantically, pressing buttons, try, like a shooter, to hit the infrared receiver

Grounding and grounding – ensuring the safety of people working with electrical installations and networks, using household or industrial appliances powered by electricity. Any failure of such devices associated with insulation failure,

It was necessary to make a welding unit for use in the garage and in the country. Simple yet powerful, with up to 200A output current to weld steel up to 12mm thick. electrodes “four” or “five”.

I have an old music center, which over time “moved” to the dacha, but I really like it. The appearance of the device is so-so, but the sound is simply gorgeous! I'm especially fascinated by its low-frequency amplifier.

Surface-mount electronic components, unlike traditional radio components, do not have flexible leads. Passive elements are made in the form of a cylinder or parallelepiped with metallized ends. For microcircuits with many pins,