Tube Amplifier Prior to the 1960s, various audio equipment using electronic tube devices had dominated the audio field, and amplifiers were no exception. The late 1960s, especially the 1970s, were arguably the most unfortunate years of electronic tubes. Due to its own shortcomings (large volume, high power consumption, etc.), it has gradually become a state of elimination. In the late 1970s, electronic tubes began...

Basic principle circuit of stereo amplifier The following figure shows the principle circuit of a stereo audio amplifier. When analyzing the circuit, you should first understand the function of each component of the circuit, and then start from the input terminal and use the flow of the main signal as a clue to divide the circuit into several experimental contents according to the function....

What is an amplifier? Power amplifier, short for power amplifier, is the most basic equipment in the audio system. It amplifies the weak signal from the sound source or pre-amplifier, and promotes the speaker to prevent sound. It is a good set of audio system power amplifier. The role of the amplifier: Its function is mainly to amplify the weak signal input from the...