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AMPLIFIER 30W LOW COST OF 100 WATTS AMPLIFIER

BUILD A LOW COST AMPLIFIER 30W

is a very affordable stereo amplifier of 15W per channel. This amplifier is ideal for small spaces, has been tested in videorockolas. Their response is flat, you can equalize the sound from the computer software of the videorockola.

This stereo amplifier is ideal for beginners, for its simplicity and low cost. Use the built-TDA2030 is a monolithic integrated circuit class AB. Can provide 15W of output power with a load of 8 ohms.
The TDA2030 provides high output current and very low harmonic distortion. The device also incorporates a short-circuit protection automatically limits power dissipation to keep the working point of the output transistors by ensuring its operation. It also includes a conventional thermal shutdown.

For simplicity, this project can be assembled in a few minutes, providing acceptable performance. If you want to be adding some of the preamps that are in our section projects, and so drive tones.

The design of the power of this amplifier is a voltage doubler and the TDA2030 is powered by dual source, this avoids having to get a transformer with central TAP, and you just need a transformer 12v at 4 amps easy to work perfectly.

This amplifier can be used with speakers of 60W of power on, and an impedance of 8 Ohms. The size in inches, is your taste. We recommend 8 to 10 inches.

The design of this form amplifier brings the volume control built for easy assembly. It also comes with an LED that served as pilot on, and a switch connector should join him in luxury box.

A great advantage of this amplifier is that it brings a built-in voltage doubler. This allows the use of a simple transformer (two wire output), the doubler converts alternating current to direct, as well as its name suggests, doubles.

Video tutorial step by step construction of the 30W amplifier

This user Manizales Colombia, using a 30W amplifier, three input preamps with microphone, line and eq , and a signal summing , joined this small console 3 channels with a channel for high-impedance microphone and 2-channel low impedance microphone.

This is one of many possibilities that can be done with the projects that are in construyasuvideorockola.com . Only just a little imagination, to find many applications and combinations that can be very useful and fun as they learn something that can become a way of living.

is important to consider interconnection of each project, unifying land and maintain a color code to identify the left-right channel and not offset errors. These details are essential to the success of the project.

Some people see the connectors as an unnecessary expense, but really, the use of connectors is very useful when assembling, or do maintenance.

Notice how all the parts are interconnected by connectors.
To see more details, click on the picture give and see, bigger.

>>> Download here << < PDF File with the plans and forms for creating 30w amplifier economic super.

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CUASICOMPLEMENTARIO

AMPLIFIER 100 WATTS CUASICOMPLEMENTARIO

This amplifier power is not only acceptable, it is also very easy to build, which is recommended for people who want to learn and understand the transistor.

This configuration is known as quasi-complementary class AB amplifier with Darlington pair, and incorporates an NPN transistor Darlington pair and a pair consisting of a retro powered transistor NPN and one PNP.
output transistors are capable of handling similar NPN high power. D400 and A683 transistors are complementary and do not need high power handling.

Remember that the output transistors are isolated from the heatsink with mica insulators and silicone grease for heat trasnsmitir aluminum.

With a load of 8 Ohm speakers, and a voltage of 63V DC, maximum performance you can get is 50 W per channel.

To build this amp, you must build the power supply simple , Found in the projects section .

For this amplifier is recommended to use loudspeakers, between 100W and 200W of power, with an impedance of 8 Ohms.

The rheostat (VR1), serves to focus the medium voltage (vcc Medium). The midpoint is more or less in 58K.El resistor (VR2) is to remove the crossober (distortion at the center wavelength), the measurement is between 8 and 10 ohms. You can place a fixed resistor, but in case of the 63v source is not accurate, or the simple fact that the components are not exact, the resistors can be very useful in focusing the appropriate point and to prevent damage.

>>> Download here << < PDF file with the plans and the form of 100-watt amplifier.

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mic preamps with reverb and delay

mic preamps with reverb and delay

This microphone preamp with reverb and delay, is very useful for videorockolas with Karaoke, it gives the necessary effect to the voice, and makes it more attractive.

Video tutorial showing the process that circuit assembly

Due to the success of the video jukebox, manufacturers have begun to enrich the machine with other services such as: Radio, TV and Karaoke. For the latter audience for this project, which aims to give a sound more attractive to the karaoke singer's voice. The reverb and delay, are basically signal delays, added to the original sound, which give depth to the sound.

materials for this project are very economical with the exception of the integrated ES56033E , which can be supplied on Littlediode.com in local stores is somewhat limited. Remember to print in addition to the printed circuit mask to have her phone components when assembling the card.

After printing the printed circuit on Bakelite, the technique of ironing , or screen printing technique , proceed to put all the resistors and jumpers (jumpers .)

Weld correctly, you must join welding, soldering and the workpiece at the same time. Remember that the weld quality depends on the success of any electronics project it undertakes.

Although not essential, is recommended to place a 16-pin base for the integrated circuit. This is useful if you want to change it to malfunction or any other reason, can do so quickly and without damaging the tracks, as one integrated removing many feet is no easy task.

The use of connectors is very convenient at the time of maintenance of the circuit, or disassembled for mounted on another unit. We used molex connectors are of good quality and very aesthetic. If you do not use connectors, you can solder wires directly to the PCB holes.

2N5551 transistors (NPN) are widely used for low noise preamplifiers. Double check the position before welding mask looking at the components.

This circuit operates on 12 volts DC, and support up to 50v ceramic capacitors, for this is not specified voltage. In addition, all ceramic capacitors so as polyester, are above this voltage.

We can see the polyester and ceramic capacitors placed. They have no polarity. To view the photos larger, click on them.

Now put the electrolytic capacitors. These are polarity. Components in the mask shows the direction of the condenser, and condenser brings a strip that shows the negative. Addition when new, bring negative leg shorter.

C5V6 zener diode is a diode 6 volts. It feeds the integrated circuit, since the ES56033E only needs 6 volts to operate. The 12v preamp is attached to the integrated circuit of reverb and delay.

We put

50K potentiometers and wash the card on the side of the tracks with thinner, to prevent short welding particles that can be attached to the PCB.

ES56033

The generator is an echo effect which includes in its interior, a VCO (voltage controlled oscillator) which can be adjusted to the desired frequency through an external resistor and capacitor. It also contains a converter D / A,
(adaptive delta modulation), two low pass filters and a 32KB SRAM.

To feed this circuit, must build a single source, which is in the PDF of this project. The current consumption is only 300 milliamps and voltage transformer can be 10 to 12 volts AC.

>>> Download here << < The PDF file with information and forms for joining the microphone preamp with reverb and delay.