This article discusses the audio mixer design and operating principle based on the use of the LM741 operational amplifier (op-amp) IC. The features of the LM741 and the step-by-step creation of the audio mixer circuit are examined, while explaining how audio mixers work.

The Brain Waves and EEG article allows us to understand brain activity by examining the electrical communication of brain cells. It contains detailed explanations of the functions of different brain waves and EEG technology.

Inverting and non-inverting amplifier circuits related to opamps. Essential components for signal processing