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Jul 31 2020

Oscillator Basics: Oscillator Circuit Types Explanation

Introduction Simply put, an oscillator is a device that can convert DC power into AC power without external signal excitation. The so-called "oscillation" implies alternating current. This article will mainly explain the circuits of different sine wave oscillators, including their working principle

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Jul 29 2020

How to Test a Relay with Multimeter?

IntroductionA relay is an electronic control device, which has a control system (also called an input loop) and a controlled system (also called an output loop). It is often used in automatic control circuits. In fact, it is an automated switch using smaller current to control a larger current. Ther

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Jul 23 2020

How to Test a Start Capacitor?

Introduction What is the difference between a three-phase AC motor and a single-phase AC motor? If you pay attention to it, you will find that single-phase AC motors have one more equipment than three-phase AC motors, which is the start capacitor(starting capacitor). The most common one is in vario

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Jul 23 2020

Vacuum Tubes for Sale: Vacuum Tube Radio Overview

Ⅰ IntroductionThe vacuum tube was an essential part of early radios, used to create and amplify the electrical signals needed for the radio to work. The vacuum tube radio was a new stuff of the early 20th century, and immediately became the "new favorite" of that era with the launch of the radio sho

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Jul 6 2020

How Does Computer Memory Work? Examples Analysis

Ⅰ IntroductionComputer memory is used to store programs and data. The main function of memory is to read and write. For random access memory RAM, their main functions are to read and write, and for read-only memory ROM, the main function is only to read. In general, the memory can be

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Jul 2 2020

AGM vs.Gel Batteries: What's the Difference in Design?

I OverviewValve regulated lead acid battery (VRLA battery) is generally divided into gel battery and AGM battery.  Figure 1. Classification of VRLA Battery Gel battery is a valve regulated lead acid battery made by gel technology which not only refers to whether the batter

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