Sound power amplifier with your hands for 30 watts

In this article we will tell, which components are needed to collect your own 30 watt sound amplifier with your own hands at home. The printed circuit board in the Lay format is attached.

It happens, there is a need for amplifiers with a lot of rated power, and the sound quality to be excellent. Naturally buying such equipment is expensive, then the thought comes, "and not to collect such an amplifier at home?". Here we offer a simple scheme of the amplifier of the sound of 30 watts, which can also be able to please the power and quality of sound.

The proposed scheme is not new, verified. A pair of transistors (Darlington) in the Top3 case should be installed on the cooling radiator. In turn, there should be a mica for isolation in turn, and so that there is good heat transfer, it is required to not register the thermal college and apply (CCT-8).

This scheme has a TR resistor, it is needed to set the current rest. To adjust this resistor, you need to correctly: to the ends of the resistors R20 (or R21), fasten the clips of the multimeter and measure the voltage (the limit power at the multimeter should stand 200 mV), then the obtained power to adjust the TR resistor to the TR resistor to a 2 mW resistor.

Such a stress decline can be ledging to DC - 30 mA. Let the sound amplifier be in such a constant state of about 15 minutes without an incoming signal, after which the readings are renounced.