What is a capacitance meter and how to use?

On 2019-01-02 16:16:00  in Knownlege

What is a capacitance meter and how to use?

This article describes the capacitance meter and the use of it. ...

What is the principle of patch miniature FM radio?

On 2019-01-12 13:42:13  in Knownlege

What is the principle of patch miniature FM radio?

This article briefly introduces the principle of patch miniature FM radio. ...

​What is a differential pair?

On 2018-10-27 11:20:00  in Knownlege

​What is a differential pair?

A differential pair of tubes is also called a pair of tubes or a differential pair of tubes. ...

What is the different of combustion method and Sol-Gel method?

On 2019-01-15 11:44:22  in Knownlege

What is the different of combustion method and Sol-Gel method?

This article writes about the different of combustion method and Sol-Gel method. ...

What is the wave soldering and its process?

On 2019-01-09 15:05:39  in Knownlege

What is the wave soldering and its process?

This article describes the wave soldering and its process ...

What is an Integrated Operational Amplifier?

On 2019-01-07 17:33:42  in Knownlege

What is an Integrated Operational Amplifier?

This article describes the Integrated Operational Amplifier ...

Oscilloscope basical principle

On 2019-04-09 11:33:42  in Knownlege

Oscilloscope basical principle

This article describes the oscilloscope basical principle ...

What are the characteristics and shape and measuring range of digital multimeter?

On 2019-02-15 13:59:23  in Knownlege

What are the characteristics and shape and measuring range of digital multimeter?

This article briefly introduces the characteristics and shape and measuring range of digital multimeter ...

What is a three-terminal integrated voltage regulator and how to classify?

On 2018-12-14 15:01:07  in Knownlege

What is a three-terminal integrated voltage regulator and how to classify?

This article describes the role of three-terminal integrated voltage regulator and how to classify ...

Self-resetting switch and self-locking switch

On 2018-12-10 13:40:04  in Knownlege

Self-resetting switch and self-locking switch

This article writes about the different roles of self-resetting switch and self-locking switch ...

Laptop cooler

On 2018-12-05 12:07:56  in Knownlege

Laptop cooler

​This article briefly introduces the laptop cooler ...

How to solve the actual running problem of most circuit boards?

On 2019-04-19 11:14:11  in Knownlege

How to solve the actual running problem of most circuit boards?

This article briefly introduces the way to solve the actual running problem of most circuit boards ...

How to layout components when design a printed circuit board?

On 2019-01-14 13:39:47  in Knownlege

How to layout components when design a printed circuit board?

This article describes the layout design of printed circuit boards ...

What is a universal bridge?

On 2019-01-05 10:24:47  in Knownlege

What is a universal bridge?

This article introduces the universal bridge. ...

MEMS oscillator and quartz clock in the car

On 2019-05-20 13:14:44  in Knownlege

MEMS oscillator and quartz clock in the car

This article writes about the MEMS oscillator and quartz clock in the car ...

What are the functions of the universal bridge instrument knobs and switches?

On 2019-01-27 14:53:54  in Knownlege

What are the functions of the universal bridge instrument knobs and switches?

This article describes the functions of the universal bridge instrument knobs and switches . ...

What is the structure of the moving coil microphone and how to detect it?

On 2019-01-02 15:05:41  in Knownlege

What is the structure of the moving coil microphone and how to detect it?

This article describes the structure and detection of the moving coil microphone ...

The difference of tube and transistor.

On 2018-12-04 10:44:04  in Knownlege

The difference of tube and transistor.

This article describes the difference of tube and transistor ...

What kind of garbage is used battery and what harm?

On 2021-06-26 10:53:01  in Knownlege

What kind of garbage is used battery and what harm?

This article describes the characteristics of the battery. ...

What is the working principle of the bias circuit in the triode amplifier circuit?

On 2019-10-17 10:02:01  in Knownlege

What is the working principle of the bias circuit in the triode amplifier circuit?

This article describes the characteristics of the triode amplifier. ...

How to select a automobile digital multimeter?

On 2019-03-08 11:31:34  in Knownlege

How to select a automobile digital multimeter?

This article describes the selection method of automobile digital multimeter. ...

What is the welding process of printed circuit board?

On 2019-01-12 11:44:44  in Knownlege

What is the welding process of printed circuit board?

This article writes about the welding process of printed circuit board ...

What is a circuit connector?

On 2018-12-08 13:51:01  in Knownlege

What is a circuit connector?

This article describes the role of circuit connector ...

Why does the computer's graphics card capacitor broken? Does it affect the operation of the computer?

On 2018-12-08 13:39:51  in Knownlege

Why does the computer's graphics card capacitor broken? Does it affect the operation of the computer?

This article briefly introduces why does the capacitor broken and its effects。 ...

The difference between graphics card cooler and CPU cooler

On 2018-12-06 10:51:09  in Knownlege

The difference between graphics card cooler and CPU cooler

This article briefly introduces the difference between graphics card cooler and CPU cooler ...

Application status of wireless network technology

On 2019-06-12 14:49:50  in Knownlege

Application status of wireless network technology

This article briefly introduces the application status of wireless network technology ...

Drawing board diagram of printed circuit board.

On 2019-01-14 17:25:00  in Knownlege

Drawing board diagram of printed circuit board.

This article describes the drawing board diagram of printed circuit board. ...

Transistor roles, characteristics and states

On 2018-12-13 11:45:47  in Knownlege

Transistor  roles, characteristics and states

This article describes of transistor roles, characteristics and states ...

What are the characteristics of the smartphone?

On 2019-02-14 11:16:20  in Knownlege

 What are the characteristics of the smartphone?

This article briefly introduces the characteristics of the smartphone ...

What are the components of the wired mouse module and connector?

On 2019-01-14 17:44:21  in Knownlege

What are the components of the wired mouse module and connector?

This article introduces some the components of the wired mouse module and connector ...

Computer motherboard resistance, capacitance

On 2018-12-08 11:11:23  in Knownlege

Computer motherboard resistance, capacitance

This article writes about the different roles of capacitors and resistors ...

What is the relationship between the circuit structure and the logic function of the trigger?

On 2019-10-22 09:54:26  in Knownlege

What is the relationship between the circuit structure and the logic function of the trigger?

This article describes the characteristics of the triggers. ...

Discrimination on the pseudo-concept of "reverse earth resistor value and modification of multimeter pens

On 2019-04-16 11:29:12  in Knownlege

Discrimination on the pseudo-concept of "reverse earth resistor value and modification of multimeter pens

This article briefly introduces the discrimination on the pseudo-concept of "reverse earth resistor value” and modification of multimeter pens ...

How to judge whether there is a fault element according to the value of earth resistance?

On 2019-04-03 14:22:13  in Knownlege

How to judge whether there is a fault element according to the value of earth resistance?

This article describes the how to judge whether there is a fault element according to the value of earth resistor. ...

What are the precautions when using a mechanical multimeter?

On 2019-01-27 15:03:50  in Knownlege

What are the precautions when using a mechanical multimeter?

This article introduces some precautions when using a mechanical multimeter. ...

What is a triode and how to identify its pin?

On 2019-01-21 16:50:52  in Knownlege

What is a triode and how to identify its pin?

This article describes what is a triode and how to identify its pin ...

What are the common reason of fault of the electromagnet?

On 2019-01-08 14:24:09  in Knownlege

What are the common reason of fault of the electromagnet?

This article introduces the common reason of fault of the electromagnet. ...

How to use the clamp ammeter?

On 2018-12-29 14:18:45  in Knownlege

How to use the clamp ammeter?

This article briefly introduces the use of clamp ammeter ...

When using resistance and line on-off test mode of the automotive digital multimeter.

On 2019-04-22 14:33:41  in Knownlege

When using resistance and line on-off test mode of the automotive digital multimeter.

This article write about when using resistance and line on-off test mode of the automotive digital multimeter.The correct method of choosing gear and connecting detection line is adopted. ...

Design dimensions of printed conductors and holes for pad

On 2018-12-13 11:19:14  in Knownlege

Design dimensions of printed conductors and holes for pad

This article introduces the design dimensions of printed conductors and holes for pad ...