For checking radio circuits and simple homemade sometimes you need a speaker, but not always at hand. Now The Wrench will show us how to assemble a simple speaker. do it yourself.
To do this, you will need:
1. Cardboard
2. Neodymium magnets
3. Thin wire (0.2-0.1 mm)
4. Plastic funnel (the size of the speaker depends on it)
5. Nut equal in diameter with magnets
6. Two large plastic bottle caps
If you want to make a speaker and understand its device, then let's get started!
1. Make markings on the funnel and cut out the shape.
2. Connect several magnets and a nut, glue them to the cover. From the other same cover, cut out the ring and glue on top.
3. All this is glued to the horn.
4. We make a copper coil. The author wraps cardboard on a finger-type battery and already winds 50-60 turns of wire on it. He took the wire from an unnecessary electric motor.
If you do not have a motor, look for a transformer. A thin wire transformer can be taken from a charge for a mobile phone. First, disassemble it, and then remove the transformer from the board. One of its windings is wound with a thin wire, then we need it.
5. Cut the form out of cardboard and glue it into the future speaker.
The author also glues a piece of cardboard with a place for soldering wires. It is to them that we will signal the speaker (sound).
6. The final stage. We cut out a circle from cardboard and make a funnel out of it, which should fit snugly inside our structure. Glue it all together and you're done!
