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Zener Diode
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How to use an Analog Multimeter as a DC Power Supply

An Analogue Multimeter is an essential instrument to troubleshoot or to test electronic equipment. Here, I will show how to use an analogue multimeter as a DC power supply. It is very easy and helpful for an engineer as well as technician. Let’s do it. Part List: Analogue Multimeter with Continuity Test feature. Elements to test (LED, LCD, 7 segments etc.)

How to Test a Transistor Using Analog and Digital Multimeter (whether it is PNP or NPN)

This post is about troubleshooting the unknown transistor.It helps you to identify a transistor whether it is PNP or NPN. It is very easy to identify. Here, I will discuss the procedure how to do that.

Battery Status Indicator Circuit (Battery Low or Charged Fully) Using LED

This article is about battery status indicator. Here LED is used to indicate the status of battery either below certain amount of charges or above. I will show you the basic concepts as well as the operation of the circuit. The circuit is very simple and easy to implement.

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Troubleshooting

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