This article describes how to make DC adjustable power supply ...

This article briefly introduces the parasitic effects of resistors and capacitors ...

This article describes how the universal bridge meter measure resistance. ...

This article describes how to repair mechanical multimeter magnetoelectric meter head and resistance blocking fault. ...

This article describes the use methods of digital multimeter. ...

This article introduces how to use a mechanical multimeter. ...

This article writes about some methods to judge the DC voltage/current block failure of the mechanical multimeter and repair it. ...

This article describes how to produce a LED dimming table lamp ...

This article briefly introduces how to repair the mechanical multimeter AC voltage and current mode fault. ...

This article describes how to make a fast battery charger ...

This article describes how to use the universal bridge meter for measuring capacitance. ...

This article writes about the digital multimeter common faults and maintenance. ...

​ This article describes the effect of resistance ...

This article describes the method of reducing errors in detecting DC currents. ...

This article describes the board soldering considerations ...

This article introduces how to use mechanical multimeter ...

This article introduces how to judge whether the capacitor is good or bad ...

​ This article briefly introduce how to identify and detect electronic components ...

This article describes the analysis of bad welding quality and countermeasures ...

This article describes the characteristics of the USB-C interface and Type-C data lines. ...

This article is about the difference between electronic component plug-ins and patches. ...

This article describes the characteristics of the voltage regulation. ...

This article describes how to manufacture a mobile phone battery charger? ...

This article briefly introduces Monolithic/Hybrid Digital to Analog Converters ...

This article describes the role of the power tube ...

This article describes the use of the basic measurement function of automobile digital multimeter ...

This article describes the layout and wiring of components ...

This article describes the key technology of automotive switches ...

This article writes about the DDR2 memory power supply circuit analysis. ...

This article briefly introduces a method that extend the life of electrical appliances ...

This article briefly introduces how to check and repair the clockwork timer ...

This article describes the characteristics of the magnetic beads. ...

This article describes the characteristics of the drive resistance. ...

This article briefly introduces the five major electronic components。 ...

This article describes the method to judge a capacitor is good or bad and replace the bad one ...

This article writes about the working principle of intelligent colored lights controller ...

This article writes about the techniques for car electronic instrument maintenance ...

This article briefly introduces some ways to detect,repair and replace the ordinary inductance coil ...

This article write about the work principle of LED cycle light and the list of components to form it ...

This article describes to make an electronic energy saving lamp ...