If you want to learn how to make a speaker for your phone with your own hands, then this guide is especially for you.
For this you will need:
1. Case. Many use old speakers from the computer. Wood parts are best suited, as this material will absorb sound, which means that the sound will be better - without rattling and extraneous interference.
2. Chips. Before you make a speaker for the phone, you need to take care of purchasing the TDA2003 chip or its analogue. If one is not available, then K174UN14 can be used.
3. Capacitors with a capacity of 470 mF (1 pc.), 0.1 mF (1 pc.), 10 mF (1 pc.), 100 mF (2 pc.). It should be borne in mind that their voltage should be from 16 volts and above. If the voltage is higher, then the power consumption will increase.
4. Resistors, 3pcs: 1 Ohm, 10 Ohm, 1 kOhm.
5. The speaker. Before making speakers for the phone, of course, you need to choose a speaker. As such, you can use the speaker from a car, for example, the PIONEER system. For such an amplifier, the most optimal resistance is 8 ohms.
6. Power source. It is recommended to take the batteries from the phone.
7. 3.5 mm plug, wires, electrical tape.
8. Solder and soldering iron.
After acquiring the necessary parts, you should prepare the workplace. It is recommended to remove all foreign objects so that they do not interfere during soldering.
So, you are starting to build. It is recommended to make a monophonic amplifier, since it consumes very little power. And before you start making speakers on your phone, it is worth remembering the ratio of the highest quality volume and economic power consumption.
First, take care of nutrition. You can take several batteries (for example, 3) and assemble them in the usual way. After that, we take the connector for the power supply. Alternatively, you can take it from Nokia. We isolate and solder the wire from the battery to it.
How to make a speaker for the phone so that it makes a sufficiently loud sound? To do this, you need an amplifier. This is the hardest part of the job. It is best to assemble it on a printed circuit board, but you can do without it. Instead, you can use ordinary cardboard. To do this, pierce holes in it and fix the parts by connecting them with thin wires. Do not forget to connect the wire with the plug to the amplifier. Amplifier circuits can be searched in the literature or on the Internet in various forums.
It is very important to know that it is impossible to tighten the soldering of parts. In this case, there is a chance of overheating the elements, and they will not last long.
After that, we clean the case and attach the speaker there, connect it to the amplifier. Next we fix the battery. Carefully place in the case so that the wires are not bent or twisted anywhere. Also remember to pull the plug through the hole in the column.
So, we looked at how to make a speaker for the phone with our own hands. Finally, it is worth adding that, if desired, a radiator can be attached to the design so that your circuit does not overheat and lasts for a long time.
Enjoy your listening!