Electronics

Using the proposed method, you can solder not only an aluminum wire to a copper wire, but also solder a hole in an aluminum pan with copper material. Let's start with the usual tinning of copper wire using rosin and tin solder using a soldering iron.

Often you have to deal with old electric motors that do not have labels with characteristics of power, speed, etc. Such an electric motor can be used as a drive. For example, when making emery you need

Soldering a wire to a printed circuit board terminal without flux will be unreliable. The quality of soldering will increase significantly if flux in the form of rosin or acid is present on the soldering iron tip along with the solder.

An electric engraver bought in a store at an average price usually comes with standard assembly and accessories; a housing with a motor, a collet or jaw chuck, and an AC power supply that matches the power consumption of the motor.

There are circuits of simple signal level indicators that do not contain transistors or microcircuits. They don't even require a power source to operate. And the time spent on assembly will not exceed 20 - 30 minutes. Although, to be honest, it will work out in the end

Of course, one powerful DC motor is not the sum of three smaller motors. Some things will have to be removed, others changed and something added. With some accuracy and attentiveness, even a senior schoolchild can cope with this work.

Two great life hacks to make soldering easier. Homemade fluxes that do not require expensive or scarce components for preparation. Only citric acid, Vaseline and solder. Anyone can repeat it.

The article discusses a method for generating electricity using burned fuel and water. “We know, we know,” the power engineers will say. “This is how we generate electricity at our thermal power plants: fire heats water, steam rotates the generator shaft...” “No!” - With

Have you ever wondered how in Soviet times radio amateurs made printed circuit boards without the help of JLCPCB services, laser-iron technologies and auxiliary programs? The process is curious and exciting, so I propose to repeat what

Make a homemade wind generator from available materials. Easily! And for this you don’t have to use expensive carbon fiber blades and a high mast. And we won’t even carry out engineering calculations. We just take it and do it.

We will use a scooter frame that we assembled some time ago. To do this, remove one of the nodes from it. We bore the central hole of the driven sprocket on a homemade lathe and drill holes for the fasteners.

Operating experience and reviews indicate that this antenna can receive a reliable signal at a distance of up to 50 km from the transmitting tower. Despite its effectiveness, it can be done in just a few minutes, literally “on your knees.” From tools

Does your multimeter not have a backlight? Or is it not bright enough and the device is inconvenient to work with? We'll tell you how you can equip your Avometer with LED-based backlighting. The test sample is the popular 830 series tester. AND

Sometimes, in the evening after work, sitting in a chair watching TV, after drinking hot tea with herbs, I begin to feel sleepy.A pleasant drowsiness spreads through your body, and you SO don’t want to get up to press the wall light switch. And so at this time

An old, broken energy-saving CFL light bulb can still be very useful. For example, for making the most interesting homemade product - an induction heater. And first, as always, a little theory.

Are you tired of changing batteries in your gadgets? Then this post is for you. We'll tell you what needs to be done so that electronic devices can be charged from a standard power supply with a microUSB connector. To remake, let’s take the “ubiquitously popular” series multimeter

It will be doubly pleasant for a loved one, or even just a good friend, if the gift is made with your own hands, and not blindly bought at the first store you come across with cheap junk, just to get away with it. And for yourself, your beloved, such a thing in the interior

Anyone who works with SMD elements knows that installing them on a board with ordinary tweezers is not always convenient. They are small and your hand gets tired if you work with a large number of components. There are so-called vacuum tweezers with mechanical

When darkness falls, you need to turn on the lights. In order not to do this manually every time, there are various circuits of twilight switches (photo relays). Today we will assemble one of these circuits directly in the body of the LED lamp.

“Power Bank” - also known as an external battery - will allow you to charge gadgets without connecting to an electrical outlet. And today we make a power bank with our own hands from an electronic cigarette. Why from her? The device includes a battery with a capacity of up to 1000

In today's project we will charge a mobile phone with candle fire. To do this, we use thermoelectric converters, the operating principle of which is based on the Peltier effect. And first, a little theory.

There are a lot of instructions on the Internet for setting up a SIM card, mobile communications and Internet settings on a smartphone. Let's take a closer look and discuss one option that helps increase the speed of mobile Internet and improve the quality of communication. Your

We will talk about how to solve the problem if your smartphone suddenly stops charging. The first reason to check is the contact in the power connector. This is the most common malfunction associated with charging phones. And in 90% of cases our

Let's consider the topic of magnetic heating. And first, a little theory. The effect of heating metals in an alternating magnetic field due to eddy currents was first studied back in the 19th century. Scientists Arago and Faraday studied this issue. And in more detail