you need
  • electric motor from a children's toy
  • Pulley
  • switch
  • Rake
  • 2 plates of plywood or plastic
  • Sewing threads
  • Semiconductor diodes - 4 pieces
  • Tester
Instructions
1
most basic generator alternating current make the engine for toys and thread.Threads wrap on the axle.The motor is connected to the terminals of the light bulb flashlight.Pull the thread.This will cause the motor to rotate the anchor.The lamp lights up.
A general view of a self-made
2
on the motor shaft fix the propeller diameter of 0.5 m or more.Get a small wind farm.The faster the engine rotates, the greater the power it develops.In order to increase the speed of rotation, use pulleys and apiary on tape.Small pulley on the motor shaft slide, large - on the axis of the screw.The current produced by the generator of
such but variable.To charge the battery it is not necessary.
Fixing coils
3
For DC current assemble simple rectifier.4 To take a semiconductor diode D226 or D7 (any letter).Put them in a bridge circuit.If you wish to be powered by a generator a little radio, it will need another 2 to 2 uF capacitor and inductor (from the electric meter, telephone, translational dynamics).
Driving rectifier
4
It may be that there is no ready at hand an electric motor.You can try to collect.This requires a linear magnet in the form of a metal strip, in the middle of which you want to drill a hole for the axis.Also need 2 identical coils from the thread №10.In the wind the coil wire with enamel insulation diameter of 0.25 mm to fill the frame.2 spool, attach a wooden frame so that their ends between the rotating magnet mounted on the axle.The coils are connected in series so that when the rotation of the magnet terminal voltage is maximized (can be set experimentally).Turn this generator you can by hand, and you can use the propeller.