Problem — lost signal from the antenna The situation is different, the TV stopped showing, writes: “ No signal” . There can be many reasons, but today we will focus on the power supply of the antenna amplifier. How to check it if you do not have a device at hand. Or you don’t have a device at all. And you don’t […]
What is a Capacitor Most radio components can be divided into two groups passive and active . And the capacitor must be attributed to the first group of passive components. In theory, any capacitor can be represented as two plates separated by an insulator. They are characterized by capacity. The unit of capacitance is the farad (F), defined as one coulomb per […]
A small preface This article is a continuation of the previous article . In which it was about a transistor amplifier and its OPERATING POINT. There, the work of a classic amplifier on a single transistor was disassembled without any capacitors. There we figured out what principle a transistor amplifier works on and what depends on its operating point . And, as […]