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26

Dec

2025

Identifying Transistor Types and Measuring DC Current Gain with a Digital Mul...

Identifying Transistor Types and Measuring DC Current Gain with a Digital Multimeter A transistor has two PN junctions, similar to the unidirectional conductivity of a diode. When
26

Dec

2025

Adjustment of the Range on an Analog Multimeter

Adjustment of the Range on an Analog Multimeter Generally speaking, a pointer multimeter can measure components such as voltmeters, resistors, capacitors, inductors, etc. Each meas
26

Dec

2025

How to Test Whether a Field-Effect Transistor Is Good or Bad with a Multimeter

How to Test Whether a Field-Effect Transistor Is Good or Bad with a Multimeter Due to the presence of a damping diode between the D-S poles of commonly used MOSFETs, the performanc
25

Dec

2025

Four Ingenious Uses of a Digital Multimeter

Four Ingenious Uses of a Digital Multimeter 1. Determine whether the circuit or component is electrified The AC voltage range of numbers is very sensitive, even if there is a small
25

Dec

2025

Simple Methods for Testing Inverters with a Multimeter

Simple Methods for Testing Inverters with a Multimeter A frequency converter is a device that modifies the operating frequency of a motor to control communication. With the popular
25

Dec

2025

How to Mark and Record Time with a Multimeter

How to Mark and Record Time with a Multimeter The time when the minimum and maximum values are detected is very useful information for determining the cause of intermittent faults.
25

Dec

2025

How to Test and Diagnose Electrical Faults with a Digital Multimeter

How to Test and Diagnose Electrical Faults with a Digital Multimeter How to use it to test and detect faults has always been a difficult task, because it is difficult to capture th
25

Dec

2025

Methods for Testing Diode Polarity and Condition with a Multimeter

Methods for Testing Diode Polarity and Condition with a Multimeter Detection principle: According to the unidirectional conductivity of diodes, diodes with good performance have lo
25

Dec

2025

Testing the Operating Status of a Transistor with a Multimeter

Testing the Operating Status of a Transistor with a Multimeter For example, if a power amplifier has no output and one of them only measures the voltage between the base and emitte
25

Dec

2025

Measure the Resistance of a Refrigerator's Complete Circuit with a Multimeter

Measure the Resistance of a Refrigerator's Complete Circuit with a Multimeter The fault detection of refrigerators can be carried out through inspection, listening to sound, to
25

Dec

2025

Steps to Measure Pulse Signals Using a Multimeter

Steps to Measure Pulse Signals Using a Multimeter If it is a simple detection of the presence or absence of pulse signals, or only an empirical value and an imprecise value, it can
25

Dec

2025

Some Operations of a Digital Multimeter and How to Operate It

Some Operations of a Digital Multimeter and How to Operate It 1. Measure the DC resistance value of the relay coil The method of measuring the DC resistance value of a relay with a
25

Dec

2025

Testing of Battery Cranking Voltage Using a Multimeter

Testing of Battery Cranking Voltage Using a Multimeter The panel of the multimeter has three areas: display, function switch, measurement socket area, and probe socket area. A mult
24

Dec

2025

How to Test and Diagnose Electrical Faults with a Multimeter

How to Test and Diagnose Electrical Faults with a Multimeter How to use it to test and detect faults has always been a difficult task, because it is difficult to capture the electr
24

Dec

2025

Easily Test Poor Potentiometer Contact with a Multimeter

Easily Test Poor Potentiometer Contact with a Multimeter When using a multimeter to test a potentiometer, the appropriate gear should be selected based on the nominal value of the
24

Dec

2025

What functions does a digital multimeter generally have?

What functions does a digital multimeter generally have? There are many models and types of digital multimeters, and the measurement items and functions of different models and typ
24

Dec

2025

A Simple Principle for Selecting a Multimeter

A Simple Principle for Selecting a Multimeter The selection of a multimeter generally needs to follow a relatively simple principle: the performance parameters meet the requirement
24

Dec

2025

How to Test Whether a Relay Is Good or Bad with a Digital Multimeter

How to Test Whether a Relay Is Good or Bad with a Digital Multimeter By dividing the coil into two parts and using a resistor block, the resistance of the coil can be easily measur
24

Dec

2025

Steps for Measuring Capacitance with a Digital Multimeter

Steps for Measuring Capacitance with a Digital Multimeter 1, Measurement method for capacitance capacity Before connecting the capacitor to be tested, it is important to note that
24

Dec

2025

How to Measure the Three Pins of a Transistor with a Multimeter

How to Measure the Three Pins of a Transistor with a Multimeter A multimeter consists of a core (two PN junctions), three electrodes, and a casing. The three electrodes are called

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