The positive and negative poles of a crystal diode can be distinguished according to the following methods:
Use batteries and speakers to distinguish the positive and negative terminals of diodes,
The main characteristic of a diode is its unidirectional conductivity, and its volt ampere characteristic curve
Due to the presence of junction capacitance, when the frequency reaches a certain level,
The peak reverse voltage allowed for a diode to operate normally is usually two-thirds or slightly smaller than the VRM of VP.
A detection diode is a device used to detect low-frequency signals superimposed on a high-frequency carrier,
