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You will need

• - generator 12B;
• - rotor 1.5 m;
• - battery 12V;
• - a metal bucket or barrel made of stainless steel or aluminum;
• - relay;
• - switch (button) 12V;
• - the voltmeter;
• - mast in height from 1 to 10 m;
• - wires;
• - bolts;
• - set of wrenches;
• - Drill with drills;
• - screwdriver;
• - Nippers.

Instructions

1

Read the principle of work windgeneratora. When air flows on the blade, the energy of rotation is generated, transmitted through the rotor to the multiplier. The latter rotates the electric generator. Windmills can work alone or in a complex (groups).

2

Select type generatora (vertical or horizontal). Easier to install a vertical windgenerator, it has a higher efficiency and is easier to balance.

3

Before making a windgeneratorand think about what will be its design. If possible, use the finished structure as a sample, reproducing its basic parameters.

4

Choose the right battery. It is better to stop the choice of hermetic, specially created for the needs of alternative energy. The lifetime of such batteries is about 10 years, which will make it possible to recoup their cost faster, in comparison with conventional automobile.

5

Prepare a three-point concrete foundation for mast installation generatora, taking into account the climatic conditions andfeatures of the ground. About a week after casting the concrete, install the mast. It is desirable to provide a system of stretch marks, which will increase the stability of the structure.

6

Make a rotor with a pulley that will transmit the motion. Diameter of the rotor is selected, based on the average annual wind speed in the area.

7

From the old metal barrel, make four blades, cutting them with scissors for metal or "Bulgarian" and bending it aside. Attach the drum thus converted to generatorwith bolts. Wind speedgeneratorbut will be given by the bending of the blades, which should be selected by experience.

8

Attach to generatorat the wire and assemble the structure. Attach generator to the mast. Join the chain generator, connect the battery. Connect the load using wires. Collected in this way generator will almost completely provide energy for a small country house.

Tip 2: How to make a self-made speaker

To play music through your computer, you use speakers in which the sound source is loudspeaker. This device has a fairly simple design, which can be collected by almost everyone, using almost improvised tools and a little technical knowledge.

Instructions

1

Disassemble the old hard drive, or "eternallantern ", and get out of it a neodymium magnet. You can also purchase this item on the radio market or in a specialized store. Prepare a copper wire with a cross section of 0.5 mm and insulation, glue, paper, nippers, scissors and a soldering iron.

2

Take the sound generator that is usedto create sound waves without sound reproduction. For example, the given generator can be a computer that reproduces a melody that will not be heard without speakers.

3

Take a neodymium magnet, preferably itwas a cylindrical shape, and paste on it in a single layer of electrical tape. Wrap it on top of it in a copper wire for 4-5 windings, so that the result is a coil. In this case, separate the two outputs that will be connected to the sound generator.

4

Cut a circle from sheet A4, draw on itRadius and cut from one side to the middle. Bend the paper in such a way that a cone is obtained, and glue with glue. The cone should be the same size as the magnet, then glue it to the diffuser. To do this, you can use an insulating tape or several strips of paper, which are attached first to the cone, then to the diffuser, and then join together.

5

Connect the resulting loudspeaker to an audio generator, for example, to a computer. The leads of the coil wires must be connected to the "plus" and "minus" by means of an amplifier. Start the melody and check the sound quality. If the melody does not play, then recheck the connection diagram or the elements of the homemade loudspeakera. For example, you used low-quality or defective items from the very beginning. If there is sound, but you are not satisfied with its quality, you can try experimenting with the number of windings on the coil or the material for the diffuser.