This 2 channels audio mixer is based on the 2n3904 transistors which forms 2 pre-amplifiers. The first preamplifier of the audio mixer has a high gain and can be used for microphone input, and the ...

As the Internet of Things in all its manifestations continues to roll out, developers will need a variety of test strategies to ensure low power consumption, suitable RF performance, and even audio ...

In 1960, many engineers were just starting to learn about transistors. Without an Internet, engineers relied on books, conference papers, and magazines to get technical information. In a series of ...