005第五课电脑板中二极管应用电路

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006第六课电脑板中二极管的应用

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Varistor is a voltage sensitive component

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五环电阻哪端是头，从哪头开始读数，典春今天教大家一个好方法

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004第四课电脑板内部电容应用电路

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BC547三极管小制作,最简单的红外控制开关

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524 PN结的直流电阻和交流电阻的比较，交流电阻比直流电阻小得多

(6:23)

022 Lesson 22 Computer Board AD Conversion Interface Introduction

(1:31:16)

How can you quickly master the skills of component testing? Watch this video twice

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为什么继电器要反向并联二极管？作用很大，一看就懂

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014 Lesson 14 Computer Board Serial Communication Principle Communication

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251 LED供电限流电阻的计算，适用各种LED

(8:15)

024 Introduction to the internal working procedures of the AD converter on the computer board

(1:31:58)