To play music through a computer, speakers are used, in which the sound source is a speaker. This device has a fairly simple design that almost everyone can assemble using practically available tools and a little technical knowledge.
Instructions
Step 1
Disassemble the old hard drive, or "eternal lantern," and remove the neodymium magnet from it. 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, wire cutters, scissors and a soldering iron.
Step 2
Take a sound generator that is used to create sound waves without sound reproducing. For example, this generator can be a computer that plays a melody that will not be heard without speakers.
Step 3
Take a neodymium magnet, preferably a cylindrical one, and stick one layer of electrical tape on it. Wrap 4-5 windings of copper wire over it to form a coil. In doing so, separate the two leads that will connect to the sound generator.
Step 4
Cut a circle out of A4 sheet, draw a radius on it and cut from one side to the middle. Bend the paper so that you get a cone, 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 electrical tape or several strips of paper, which are first attached to the cone, then to the diffuser, and then connected together.
Step 5
Connect the resulting speaker to a sound generator, for example, to a computer. The leads of the coil wires must be connected to "plus" and "minus" by means of an amplifier. Play a melody and check the sound quality. If the melody does not play, then recheck the wiring diagram or elements of the homemade speaker. For example, you used poor-quality or faulty items from the very beginning. If there is sound, but you are not satisfied with its quality, then you can try experimenting with the number of windings on the coil or the material for the diffuser.
