First, search a topic. Then, pick one guide and finish a quick task. Afterward, use the checklist to confirm the result. Additionally, each article links to tools and study maps, so you can learn fast and act with confidence.
To start, browse the latest posts. Then, pick one guide and try a single task. Afterward, use the checklist to confirm the result. In addition, each article links to tools and study maps, so you can learn and act with confidence.
All articles
Types of Wires: How to Choose the Right One for Your Needs
Watch Now: Types of Wires — How to Choose the Right One? Discover the key features and types of wires, […]
TSMC, Huawei, and Global Risk: What U.S. Engineers Need to Know Now
🔗 What’s the Real-World Backdrop? Let’s break it down this Global Risk: 📰 Investor’s Business Daily reports that the Israel–Iran […]
Transistors In Electronics: Amplification And Switching Made Simple
Watch Now: What Is a Transistor? How Does It Amplify Current? Learn how transistors control large currents with small signals, […]
Transformer Voltage Step-Up & Step-Down: What You Need To Know
🎬 Watch Now: How Do Transformers Change Voltage? Unveiling the Secrets of Electromagnetic Conversion! In this video, we’ll explore how […]
Top Mistakes in Home Electrical Setup (and How to Fix Them)
Ever notice how power outages always seem to hit at the worst possible time?It’s not just about plugging in too […]
Top Material Handling Mistakes And How To Fix Them On The Jobsite
Ever been on a Material Handling Mistakes, like when you been on a jobsite when the materials finally show up—everyone’s […]
The Ultimate Guide To Choosing The Right Light Fixtures
Ever notice how sometimes you install brand new lights at home, but something just feels… off? Maybe the room still […]
The Truth About Power Factor and Why Electric Companies Care
▶️ 立即觀看:交流變直流有多難?整流器一次看懂! 你知道嗎?手機、筆電、各種電子設備,其實都吃「直流電」。但插座送來的卻是交流電——這中間, 整流器 扮演了關鍵角色! 本集帶你秒懂整流器的工作原理,從半波、全波到橋式整流,看它如何讓電流穩定下來,撐起整個系統。 Ever got hit with a surprise fee on your electric bill, even though you […]
The Truth About Blueprints: Field Fixes Every Pro Should Know
Spend enough time in construction or engineering, and you’ll see it, knowing how to read a blueprint is important, but […]

About this library
This page is your index for all electrical guides on Engineer Tsai. Moreover, you can search and filter tutorials covering basics, home wiring, components, safety and troubleshooting. Because each guide keeps theory short and focuses on steps, diagrams and checklists, you learn faster. As a result, you can move from reading to doing with less guesswork.
Topics we cover
Electrical fundamentals · Ohm’s law · AC/DC basics · Home wiring and outlets · Protective devices and relays · Meters and safe measurement · Components and LED drivers · Troubleshooting common faults and practical fixes.
How to use this page
- First, use the search box or category pills to find a topic.
- Next, open one guide and complete a single task with the checklist.
- Finally, save the tools and diagrams linked inside each article for later jobs.
FAQ
Where should beginners start?
For beginners, start with Tutorials, then the “Electrical Basics” path; after that, move to wiring and safety.
Are these tutorials safe for DIY?
Yes, but always follow safety notes; if unsure, consult a licensed professional.
What tools do I need?
Typically, a non-contact tester, a multimeter, insulated screwdrivers and proper PPE are enough.
What’s the difference between Articles and Tutorials?
In short, Tutorials are step-by-step lessons, whereas Articles are quick reads for specific topics.
Can I use these guides for my home wiring?
However, codes differ by region; therefore, always follow your local electrical code.
Popular paths: