Electronics. Page 40

Since there is no magnetic sticking, the propeller rotates happily from the slightest breeze, which you can’t even feel on the ground. When there is operating wind, it develops high speeds, I have a 2A ammeter with direct connection, so it often goes off scale by 12

Most wind generator builders are faced with a problem - where to get a generator? The usual type from a car or motorcycle will not work, as they need high revs. Today we will make a generator specifically for a windmill. It's simple

Jacob's ladder - two electrodes located as in the picture are called. It is most likely the most beautiful use of an electric arc :))) And it works like this: an arc appears at the bottom of the electrodes, the air around it heats up and

Semi-automatic Gauss cannon. Built by an American craftsman, the projectile speed is 110 km/h! There is a laser sight and a digital charge indicator. Magazine for 14 rounds of ammunition.Killer stuff!

Of course, you won’t weld with such a welding machine in everyday life, but in a hopeless situation it will definitely help out. And besides, I haven’t seen a simpler device yet. . .

Once the idea of ​​the need to install energy-saving lamps at home was introduced into consciousness, many began to install them en masse in their homes. But soon you are surprised to notice that the durability of such lamps is a maximum of half a year, the brightness and temperature of the light

A radio designer's household will always contain old diodes and transistors from radios and televisions that have become unnecessary. In skillful hands, this is wealth that can be put to good use. For example, making a solar battery with your own hands

It was evening, there was nothing. While surfing the Internet, I came across this device: And I really wanted it, but as it turned out later, they don’t sell it in our city. Well, if they don’t sell it, then we’ll make it.

We bring to your attention two miniature soldering irons, the most affordable to manufacture and meeting the requirements for the installation of miniature electronic products.

One of the simplest devices is a hidden wiring detector. It is simple, but can be indispensable for repairs. . .

Disco strobe light with amazing police flasher effect! Compared to xenon, LED is more durable and unpretentious. It can also be used for cars. . .

Although, depending on the manufacturer, economy lamps have a warranty of up to 3 years. But consumers may be faced with the fact that the light bulb has burned out, and you do not have the packaging, purchase receipt, or the store has moved to another location, i.e.

The generator is very simple in the truest sense of the word. You can use it in wind generators, some other devices for generating electrical energy, or just watch the video and get acquainted with the operation of an electric generator.

A solar battery is a device for converting solar energy into electricity. High performance solar panels, which you can buy at Radio Shack and other stores, are made from specially processed silicon and require

Why did I call this flashlight unusual? - Yes, because its design includes only 4 components: a pack of cigarettes, a few coins, an LED and plain water. . .

On this page I will tell you how to convert a personal computer power supply into a charger for car (and other) batteries with your own hands. The advantages include the fact that with this charger

This simple device can be useful for you when fishing, hiking, etc. places. You can use it to charge your mobile phone, MP3 player, flashlight, etc. A lightweight, compact wind generator will become your assistant. . .

As it turns out, quite ordinary things can be made into very unusual ones. For example, let's make a metal detector out of a radio receiver and a calculator. . .

The first circuit is the simplest multivibrator. Despite its simplicity, its scope is very wide. No electronic device is complete without it. . .

The amplifier is assembled on a TDA7262 chip, the power in stereo version is 35 Watt, and in mono version it is 80 Watt.

Here you can clearly see how an ordinary electric current flows through an ordinary sausage. By the way, the sausage was not damaged after the experiment, but on the contrary, it became appetizing and hot :-)

Summer comes, and with it mosquitoes and all sorts of other midges appear. Everyone knows how annoying mosquitoes are, especially at night. The proposed device allows you to protect yourself from all insects, and if you increase the frequency of the generator to ultrasound, then also from dogs.

Investigative practice shows that lies and denial of guilt by criminals during interrogation are associated with various physiological phenomena. First of all, this is an increase in blood pressure, a change in skin moisture, as well as uncontrolled swallowing of saliva,

A very simple and effective shoe dryer is described here. Thanks to constant air convection, it dries shoes much faster than conventional dryers, and its small dimensions allow you to take them with you anywhere. . .