How to make a column for a phone - take music with you

If you want to learn how to make a column for a phone with your own hands, then this guide is especially for you.

To do this you will need:

1. The body. Many people use old speakers from the computer. The best parts are wood, because this material will absorb sound, which means that the sound will be better - without rattling and foreign interference.

2. Microcircuits. Before you make a column for the phone, you need to take care of purchasing a TDA2003 chip or its analog. If there is not one, then you can use K174HH14.

3. Capacitors with a capacity of 470 mF (1 pc.), 0.1 mF (1 pc.), 10 mF (1 pc.), 100 mF (2 pcs.). It should be borne in mind that their voltage should be from 16 volts and above. If the voltage is higher, the power consumption will increase.

4. Resistors, 3pcs: 1 Ohm, 10 Ohm, 1 kΩ.

5. Speaker. Before you make the speakers for the phone, of course, you need to choose a speaker. As such, you can use a car speaker, for example, the PIONEER system. For such an amplifier, the optimum impedance is 8 ohms.

6. Power supply. It is recommended that you take the batteries from the phone.

7. Plug 3.5 mm, wires, electrical tape.

8. Solder and soldering iron.

After purchasing the necessary parts, you should prepare a workplace. It is recommended to remove all foreign objects so that they do not interfere during soldering.

So, you start assembling. It is recommended to make a monophonic amplifier, since it consumes very little power. And before you start making columns on your phone, you should remember about the ratio of the highest quality volume and economical power consumption.

First, take care of food. You can take a few batteries (for example, 3) and collect them according to the usual scheme. After that, take the connector for the power supply. Alternatively, you can take it from Nokia. Isolate and solder to it the wire from the battery.

How to make a column for the phone so that it makes a loud enough sound? This requires an amplifier. This is the most difficult part of the work. 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, it is necessary to pierce the holes in it and fix the parts, connecting them with thin wires. Do not forget to connect the wire with the plug to the amplifier. Schemes for the amplifier can be searched in the specialized literature or on the Internet in various forums.

It is very important to know that you can not tighten the soldering of parts. In this case, it is possible to overheat the elements, and they will not last long.

After that, clean the case and attach the speaker there, connect it to the amplifier. Next we attach the battery. Carefully place it in the casing so that the wires do not bend or twist anywhere. Also, do not forget to remove the plug through the hole in the column.

So, we looked at how to make a column for the phone with our own hands. Finally it is worth adding that, if desired, you can attach a radiator to the design so that your circuit does not overheat and has served you for a long time.

Enjoy your listening!