Electronics. Page 6

The aquarium pump motor is completely waterproof and is also equipped with a permanent magnet. Due to this, you can make a small wind generator from it, which does not need to be additionally protected from precipitation. Of course it won't work out enough

If a nut or bolt is heavily rusted, even the best penetrating lubricant will not help loosen it. The problem can only be solved by heating the connection red hot. Absolutely any of them can be easily dealt with if the metal is hot enough.

Despite the power of modern repeaters, in some remote parts of the region, one way or another, problems arise with receiving digital television. And even remote antennas are not always able to receive a weak signal. In the radio electronics market

As you know, lithium-ion batteries are extremely sensitive to recharging voltage and easily fail even with a slight deviation. To avoid this you need an accurate charger. The simple charger circuit is convenient to use,

Current clamps are a very necessary device, since they allow you to measure current without connecting to live parts. It's safe and easy. It is enough to grasp the current-carrying wire with a sliding transformer, and the display will show

This flashlight is the best assistant in a sudden or emergency situation in the absence of light. Since it is always ready to work in any weather conditions, it is extremely reliable and unpretentious. And thanks to the use of a simple electronic circuit

Modern sockets designed for installation in the bathroom provide for the connection of four wires. Anyone who has basic electrical installation concepts knows that there should be 3 of them: zero, phase and grounding. Why is the fourth needed?

Anyone with even a little soldering experience knows that solder does not stick well to aluminum. This metal instantly oxidizes, and the formed film interferes with soldering, so it must be literally scraped off, preventing air from accessing the protected area. When

When switching to DVB-T2 digital television, a special type of antenna is required, compared to meter-wave analog TV. Considering the signal strength of modern repeaters in most cities, it does not necessarily have to meet strict

The sensitivity of a regular Wi-Fi antenna on a PC or router in most cases does not exceed 3 dBi. And naturally, the range is not always enough, even sometimes to the next room. The problem of poor sensitivity can be solved by replacing the antenna. In this

Every electronics engineer is familiar with laser ironing technology (LIT) for the manufacture of circuit boards. It is accessible, does not require expensive equipment (if you do not take into account a laser printer) and rare reagents, so it legitimately deserves first place among others

The flashlight does not contain batteries and is ready for use at any time, at any temperature and in any conditions. Does not require any maintenance or care. According to all these indications, it can conditionally be called almost eternal. The design is very

This simple method of chemically purifying copper from oxide and darkening is available to absolutely everyone. All the ingredients for it can be easily found in the kitchen at home. Using this method you can clean copper coins, wires, tubes and any other

When creating homemade products in a home workshop, a lot of time and effort is spent on processing the workpieces after sawing, drilling, milling, etc. using a hand file and sandpaper. Having made a compact hand grinder, these works

It’s not bad at all if you have a small electric stove in your workshop or garage. With its help, you can cook food, simply warm up food, or heat various resins and polymers to a comfortable operating temperature. Make a small tile your own

Fluorescent energy-saving lamps (LEL) are becoming a thing of the past over time. They are being replaced by LED ones, which are simpler, more modern and environmentally friendly. LELs have a much shorter service life compared to an LED lamp. In 90 percent of cases

Uninterruptible power supplies are equipped with a lead-acid battery, the capacity of which provides low autonomy. If you properly re-equip the UPS, then its operating time during a network outage can be increased by 3 times. Let's look at how to install more

Budget extension cords do not differ in quality, and branded extension cords are expensive. It’s better to make it yourself, and from inexpensive materials and components. If you are careful, such a product will turn out to be quite reliable and durable. Do

You can make a simple power supply for a quartz watch mechanism from just a few parts.The direct conversion source is easy to manufacture and is wall-mounted. LEDs are used as zener diodes.

In essence, the principle of operation of a classic metal detector is simple: it consists of tracking changes in the search coil. For these purposes, you can also use a regular Chinese multimeter. This homemade metal detector is capable of detecting

In order to automatically turn on the cooling fan, you do not need complex circuits; you only need 3 parts. This regulator is incredibly simple to build and adjust. There is no need to make a board for the circuit, everything is soldered by surface mounting

The modern market offers a wide variety of devices for wall-mounting a flat-screen TV. Their installation requires a lot of time and effort, and they are not cheap. Let's make it super simple, but

The design of this antenna is distinguished by its simplicity, small size and good sensitivity. Simplicity is achieved due to the absence of matching circuits, and high sensitivity due to the construction of a structure according to the type

If for some reason you don’t want or can’t drill a window or wall in order to lay a cable from a street antenna (satellite dish), then this life hack will be extremely useful to you. I admit honestly that I learned about this method myself.