Electronics. Page 9

Amateur soldering irons require a long warm-up before use. To solder one contact, you will have to wait 3-5 minutes until the tip of the tool warms up to the melting temperature of the wire, which is extremely inconvenient. Made from old

Making wireless charging for your cell phone yourself is quite simple. This charger is suitable for any smartphone model with this function. If your smartphone does not have such a function, then how to simply add it, see here.

Free electricity is the dream of many. Some people get it from solar panels, others build wind generators. As a result, the former have electricity only on sunny days, and the latter on windy days. A more permanent stable source for receiving

The regulator is used to change the alternating voltage supplied to lamps and other household devices with low and medium power.The regulator circuit is assembled on the basis of a triac, which provides a noticeably lower level of interference in the supply network

Typically, the simplest converter from 12 to 220 V is built on one transistor and a transformer with a three-terminal primary winding. By positive feedback, the generator on the transistor is excited and generation occurs. From the secondary winding

In a home workshop there is always a use for a spot welding machine, but the simplest of them in a store costs from several thousand rubles. If you remove a transformer from an old microwave oven, you can make such a device yourself using

Capacitive batteries for electric bicycles or electric motorcycles are very expensive, so it is cheaper to make them yourself by connecting 18650 batteries together. But to ensure that such an assembly does not fail, jumpers must be welded to the batteries. This is done

This miniature device with quite high power is simply a godsend for a small workshop. Using this induction heater, you can heat metal workpieces to red hot in a matter of seconds, which is useful for both tempering

In less than an hour, you can assemble a simple closet light that turns on automatically when the doors are opened.Thanks to the battery, it will work even in the absence of electricity. The economical LED used in it will allow

With the onset of summer, I really want to turn on the air conditioner, but few people buy it, since it is quite expensive and also consumes a lot of electricity. If you have a well on your property, you can use cold water from it,

When remaking computer power supplies, you need to make a resistor up to one ohm. I managed to buy Manganin. Some people use stainless steel. To select the desired segment, you need to know its resistance. I make resistors of the order of 0.01-0.05 Ohm.

In order not to be left without electricity during network outages, as well as to use electrical appliances where there is no electrification at all, you need an electric generator. This does not have to be a purchased device, for unpretentious consumers

The DC circuit protection circuit is easy to assemble and does not require configuration. It is capable of not only monitoring a short circuit in the circuit, but also monitoring the voltage drop across the load. The device has an operation indication and a start button.

The circuit is designed to optically indicate that the lithium-ion battery has reached full charge and is included in the gap between a voltage source of 6 to 12 V and the battery being charged. The charge status is indicated by a glowing LED, when

A portable, low-voltage ice maker is quite easy to assemble with your own hands, even for a novice DIYer. This installation contains a minimum of parts and has a power of about 150 W. The design is extremely simple and does not require configuration. Her

The device is a switch of control actions and is designed to work with low-power brushless (otherwise brushless) electric motors, provided their windings are connected in a star. A typical example of such units is a drive

The device is designed to control an electric motor for children's toys, powered by a AA battery. It turns it on by selecting the direction of rotation of the rotor. The functions of the control elements are performed by pressing the circuit,

From an old brass tap you can make an excellent tip not only for a soldering station, but also for a regular soldering iron. For this you do not need a lathe, which in fact not everyone can have. The entire production will take no more than 15 minutes.

If you have an old hard drive lying around that no one needs anymore, then you can use it to make an excellent miniature machine for your workshop or home. With which you can easily sharpen knives, scissors, screwdrivers, and some special

Making a miniature computer that can easily run Windows 10 is quite easy. This PC will have a 7-inch touchscreen display, USB ports for connecting any devices, such as a wireless keyboard and mouse. The PC is also equipped with wi-fi and

It often happens that you watch TV in a dimly lit room. Take the control panel and want to change the channel. Almost by touch, press the button and, naturally, it’s not the one you need. To prevent this from happening, you can do it very simply

A simple automatic key, in addition to the main function: automatic shutdown when fully charged, also has the function of starting and stopping the cycle using clock buttons. The circuit is connected between the charger and the battery. Can be easily configured to

This indicator has no logical elements, is incredibly easy to assemble and extremely reliable in operation. Consists of only 5 elements, soldered in 5 minutes without paying. The indicator is designed to monitor critically low battery voltage

Living in an area open to the winds, it would be a sin not to take advantage of this and make a small windmill.It will become a source of free electricity that can be received around the clock. The proposed wind turbine design produces