How to understand the principle of operation of this circuit?

Question

Electronics

Help me figure out how current flows in a circuit from element to element. Where is the common wire? Why are capacitors needed? How is everything arranged in this scheme? Thanks

Answer 1

Here is a book , chapter 4, paragraph 1. If you are too lazy to read and understand, read a brief description on the site from where the diagram was pulled out. Well, for those who are completely lazy and who do not know how to search for information on the Internet, here is:
PS The work was done solely as a sign of respect for the blessed memory of "Kotyar" (KT315/361 transistors).

Answer 2

Maybe you should start with the basics? Learn what a capacitor and a resistor are, what they are generally used for. Understand how a transistor works, what is a current-voltage characteristic, a linear mode of operation. Look at single-stage circuits, understand their work. Then the standard two-stage amplifier circuit will not cause any difficulties.
madelectronics.ru/uchebnik

Answer 3

If, when looking at the circuit, and even with pre-written reference voltage values ​​\u200b\u200bat the control points, you don’t have an understanding of it, then it’s better to really turn to the basics of electrical engineering and the very beginning.
In general, this circuit is a class "A" push-pull amplifier. The quiescent current is about 5mA. Possibly a mic amplifier, unless otherwise noted. According to the ratings of the circuit, I would assume a gain of the order of 500-5000, perhaps a slightly larger spread. The linearity is good, the frequency characteristics are not less than 50..20000 Hz.
The output power is less than 100mW.