出力インピーダンスと入力のインピーダンスって何？/実用的なアンプを作ろう！(6)【電子工作】[013]

The "input impedance" and "output impedance" of audio equipment are factors that greatly affect sound quality and efficiency. However, while many people know that they need to "output high and receive low," they find it difficult to imagine what these impedances are and how they affect sound. In this video, we will explain what output impedance and input impedance are and what they should be. To truly understand this, you need to understand the inner workings of electronic circuits. To make this easier to understand, we will explain using the circuit of a single-transistor amplifier, which is arguably the simplest amplifier. This series explains how beginners to electronic circuits can build simple audio amplifiers, but to build a two-stage amplifier that produces sound, it is absolutely necessary to understand the output impedance of the first stage and the input impedance of the second stage. In this video, we will therefore provide a detailed explanation of output and input impedance before designing a two-stage amplifier. By watching this video, you will gain a clear understanding of the output impedance and input impedance of devices related to "sound," such as audio equipment and electronic musical instruments, and you will gain the necessary knowledge that will be useful when using and designing them, so please watch until the end.