capacity of standard speaker phone is not all missing.Many people like to listen to music very loudly.To increase the sound level is necessary to make a special amplifier.
Before making a column, it is necessary to acquire the necessary details.First of all, we buy TDA2003 chip or something similar to it.Alternatively, you can select K174UN14.Next acquired capacitors of different capacity: 10 mF (a), 100 mF (two), 0.1 mF (a), 470 mF (one).Their power must be at least 16 volts, but are allowed to use a large capacitor voltage, but in this case will increase the power consumption.
before a column with your hands, you have to prepare resistors.They need only three 10 ohm, 1 ohm and 1 ohm.Of course, do not forget about the speaker and solder with a soldering iron.
When everything is bought and prepared workplace, proceed to assembly.It should be noted that the enhancer be selected mono analogue.There are several reasons.Firstly, mono amplifier consumes very little energy.Secondly, before making a column for the phone with your hands, you must clearly realize that it is necessary to organize such a volume that it has the highest quality, and the battery can provide the efficiency of the device for a long time.
amplifier circuit must be checked, do not take the first available, because it is likely to damage the phone.
Power is better to collect a special printed circuit board if the skills of its production is not available, you can use an ordinary cardboard.Before you make a column in a flat sheet of cardboard pierced hole, and fixed parts are interconnected by thin wires.
When the assembly is finished, you should arrange proper cooling the chip.This can be a normal aluminum frame or a small plate that is bolted to the body chip one bolt.
power source, you can choose three batteries from the phone, the total capacity of which shall not exceed 11 volts.Optimal speaker for such an amplifier impedance is 8 ohms.
How to make your own column?It is recommended to try out the dynamics of the car.4 homny analogue music from a car PIONEER system works great and gives great sound.
The body of the device can be borrowed from the old column, which is used for the computer.
We looked at how to make your own column, but did not say the main thing: a wooden sound body is not absorbed, so the sound quality.There will reproduce lower frequencies, but the sound is not unpleasant rattling foreign interference.Besides high frequencies create strong vibrations, so plastic with iron are beginning to make noise in the music.Few people enjoy such an addition.
Soldering parts should not be delayed, can not be over-heating elements, otherwise they will break down quickly and enjoy the product would be short.It is important that during the soldering process at the workplace or any other objects.
