Mini-box 2W Amplifier
This amplifier was designed to be independent in a small speaker box. It can carry feed, mini CD-ROM, iPod and CD players, computers and similar devices equipped with a line or headphone output. Of course, in most cases, you will have to get stereo boxes.
The circuit is deliberately designed with chips and not in a very old-fashioned way to get a good harmonic distortion, and to avoid hard to find components. The amplifier (Sunday) can easily provide the 12V wall adapter plug-in.
As of bass boost short-wave, but at the same time, the volume control must be increased to make up for the loss of electricity at a higher frequency.
In use, R9 should be carefully adjusted to provide minimum distortion sound signals to cross at least in line with the measurement of the static current consumption; a good compromise is built on approximately 10-15 mA quiescent current.
In order to measure this current, direct current-meter lead a series of collector for the time being in the third quarter. Link
Other Link
Modular Audio Preamplifier
Input Amplifier Module using TL061
Speech Amplifier Box using TDA7052
15 Watt Amplifier using MJ2955
