DIY speaker amplifier

Sound amplifiers in stores are expensive and, moreover, are not always of high quality. Therefore, there is a desire to do it yourself. This article will explain how to do this.

Is it possible to make a speaker amplifier with your own hands

In various outlets you can find a large number of amplifiers for speakers, but any amateur radio can create it without much effort. Manual manufacture of speaker amplifiers is significantly more economical. To create it does not require special knowledge. You only need a desire and know how to assemble it correctly, having previously purchased the necessary materials. Below, we consider detailed instructions for assembling improvised amplifiers.

How to assemble a stereo amplifier for your own speakers 12v

Anyone who decides to create an amplifier for speakers is primarily interested in the components that are needed for assembly. Such devices work thanks to microchips and transistors, although there are cases when lamps are used.

Recommendations

A manually created sound amplifier based on microchips such as TDA and the like heats up very quickly. In order to prevent overheating, it is necessary to install radiator grilles. The sizes and types of gratings depend on the type of microcircuit and the power of the created device. Therefore, you must first leave a place for it in the case.

Caution: The manual creation of an amplifier must be taken seriously to avoid short circuits and failure of the device components.

What do you need in the process

To start manufacturing the device, you will need:

• housing;
• plug;
• Power Supply;
• chip;
• switch button;
• wiring;
• cooling radiator;
• screws;
• hot glue with thermal paste;
• soldering iron and rosin.

1. The drill is an expander. It is necessary for drilling holes in plastic or metal. This is a very convenient and accurate tool with which you can easily assemble the case.
2. Microchips. Essential TDA chips can easily be found on store shelves. As an alternative, you can disassemble the old TV, and remove the desired chip from there.
3. Transistors Transistors are convenient for their low power consumption and the fact that they are easy to mount in any device. They transmit sound perfectly and do not need to be tuned.
4. Lamps. Already few people create lamp-based devices. But, nevertheless, such devices have excellent sound parameters. Such devices have a large number of disadvantages: they consume a lot of energy, take up a lot of space, are heavier than usual, expensive.

Having dealt with the necessary components, you can begin to assemble the device.

Assembly diagrams and instructions

There are many schemes for assembling amplifiers. They primarily depend on whether the old or digital technology will be created, the size and power source of the device. Circuits are assembled on a printed circuit board, which will eventually make the device compact. A soldering iron should also be available for assembly.

The circuit, which was developed by the British John Linsley Hood, is based on the use of four transistors without the use of microcircuits. This scheme allows you to accurately reproduce the shape of the input signal, which results in high-quality gain and a sinusoid.

Reference. The simplest type of circuit is to create an amplifier based on a microcircuit, which includes transistors and capacitors.

Only professionals can create their own schemes. For beginners, there is a Sprint Layout program where you can look at schemes and select the one you need.

DIY amplifier for car radio

It happens that the sound of music in a car is not as high-quality as we would like. For those who do not want to spend a lot of money on amplifiers, there is an opportunity to assemble an amplifier yourself.

To implement such an idea, the TDA8569Q chip is quite suitable. It is very popular due to its characteristics:

• voltage is from six to 18 volts;
• high input power;
• emits a frequency of 20 to 20,000 Hz.

The first step in the assembly is to draw a printed circuit board. Then it is recommended to treat the board with ferric chloride. Then it’s worth soldering all the components of the chip. In order for nebilo food additives need a thick layer of solder. Also, do not forget to leave a place on the case for the radiator grill, which acts as a cooling.

Amplifier for computer speakers do-it-yourself for dummies

When watching movies or listening to music, the power of standard speakers is often not enough for us. Below will be described in detail how you can create an amplifier for the speakers manually.When creating an amplifier, the power of the external speakers should be taken into account, which is no more than two watts and the resistance of the windings, which is equal to four OM.

To assemble the device you will need these components:

• printed circuit board;
• 9 - volt power supply;
• microchip series TDA;
• housing;
• the following capacitors: two non-polar 0.2 microfarads. polar 100 microfarads, polar 220 microfarads, polar 470 microfarads;
• constant resistor. 10 com m 4.7 OM;
• button - switch;
• input jack.

Create Instructions

The process of assembling an amplifier for a computer directly depends on the circuit that you have chosen. It is only important to leave a place for radiator grills on the case. They are important in that they allow air from the external environment to cool microcircuits.

• The first step is to install the radio components on the printed circuit board observing the polarity.
• Putting the case together. When assembling the housing, a place should be provided for the radiator grilles and other additional parts. You can create the case yourself or purchase it ready. You can also mount a board in the case.
• For troubleshooting, you should turn on the device in test mode.
• We collect the amplifier. To do this, connect to the power supply.

To assemble any kind of amplifiers for speakers at home is a doable task that every novice radio amateur will cope with. Simplicity lies in the fact that to start assembly it is only necessary to purchase the necessary materials for subsequent soldering. Then you just need to review all the possible and affordable schemes, and choose the one that suits you. The most important plus is saving. After all, buying in the store of such a device will cost much more.