SR Electronic

09/08/2026

⚡ HOW TO TEST A DIODE WITH A MULTIMETER!

Is your diode good or bad? 🔥

In this video, we show you a simple and practical way to test a diode using a digital multimeter.

You’ll learn:
✅ How to select diode test mode
✅ How to test a good diode
✅ What a normal forward-voltage reading looks like
✅ How to identify a shorted diode
✅ How to identify an open diode
✅ How to test a diode on a PCB
✅ Why in-circuit measurements can sometimes be misleading

Whether you're a beginner learning electronics or an experienced PCB repair technician, this is one of the basic multimeter tests you should know.

⚡ Test it. Find the fault. Repair it.

Subscribe to SR Electronic for more practical electronics, multimeter testing, PCB repair and troubleshooting videos.

09/05/2026

⚡ HOW TO MAKE A DIY SPOT WELDING MACHINE!

From simple components to a working spot welder 🔥

Watch the full build and see the final welding test!

Would you build one? 👇

⚠️ High-current equipment can be dangerous. Use properly rated components and follow electrical safety precautions.

09/04/2026

Shout out to my newest followers! Excited to have you onboard! Lê Xuân Phong, Ron Selles, Charla Marshel White, Hichem Hmida, David Cockburn, Hermie Jun Jun Occiano, Pushpa Kumara Darshana, KufreAbasi Sam, Sherin T Sherin, Manoj Kumar, Dhiraj Umare, Reece Lawrence, Sean Schultz, Thusitha Ekanayaka, Rebas Saber, Scrym Geour, Corneliu Stepan, Hassan Ben Abdou, David Coniglio, 蕭豪山, Tere Boga, Hitech Saravanan, Romain Nametio, Marco Milad, Pradip Chudgar, Niren Balraj, Crown Crown, Bak Jong Uk, Salehi Khodabakhsh, Asem Mailliw, Martin Léger Kankpo, Seneth Madushan, Asad Aslam, Samer Alqaisi, Danny Lat, Scelo Manepa, Jayzier Capitle Cabansag, Ravel Ranto, Ignasius Jehamat, Carl Pulgar, Lin Chay, Muhammad Choudhary, Lindah Hashim, Joseph G Leria, Charles Weston, Crypto Galxy, Muhammad Fayyaz, Ajaruddin Molla, Bo Ra, Etla Viva

09/03/2026

Ever wondered how a multimeter actually measures electricity? ⚡🔧
Here’s what happens inside!

09/03/2026

CAN A CREDIT CARD CHIP REALLY BECOME GOLD? 🤯🔥

What happens when a tiny credit card chip enters a futuristic machine? ⚡🪙
Watch this crazy transformation! 🤯
Fictional AI experiment — not a real gold-making process.

09/02/2026

🔥 Build Your Own Powerful BTL Audio Amplifier Using TIP 3055! 🔊💥
​Want crisp sound and boosted bass? Check out this simple DIY circuit powered by a 12V DC power supply with integrated Bluetooth capability! Perfect for your next home audio project.
​👇 Watch the full step-by-step tutorial and circuit diagram here:
[Insert Your YouTube Link Here]
​If you enjoyed this project, don't forget to Like, Share, and Subscribe for more DIY electronics tutorials! ⚡👇
​

09/02/2026

🔋⚡ 12V BATTERY LEVEL INDICATOR USING LM3914!

Ever wondered how to monitor a 12V battery at a glance? 🔥

In this project, we use an LM3914 IC + 10 LEDs to create a simple LED battery level indicator.

📊 The LEDs light up progressively as the battery voltage changes.

🔧 Components:
• LM3914 IC
• 10 LEDs
• Resistors
• 12V Battery
• Breadboard

A simple and useful electronics project for learning about voltage sensing, LED indicators, and analog circuits. ⚡

Would you build this circuit? 👇

09/02/2026

09/02/2026

How Does a DSLR Camera Actually Work? 🤔📷
Ever wondered what happens inside a DSLR camera when you press the shutter button?
In this 60-second video, we break it down step by step:
🔍 Light enters through the lens
🔄 The mirror mechanism redirects the light
👁️ The optical viewfinder lets you see the scene
⚡ The shutter opens and exposes the sensor
🧠 The image sensor converts light into digital data
💾 The camera processor creates the final image and saves it to the memory card
All the amazing technology inside a DSLR — explained in just 60 seconds! 🔥

09/01/2026

🔋 In this video, we build a powerful 12V 18,200mAh Li-ion Battery Pack with a high current output of up to 420A.
⚡ Watch the complete DIY battery pack build, from cell arrangement and connections to BMS installation and final testing.
This project is useful for learning about:
🔧 Li-ion battery pack construction
🔋 12V battery systems
⚡ High-current battery applications
🛠️ BMS protection
🔌 Battery pack wiring and testing
⚠️ SAFETY WARNING: Li-ion batteries can be dangerous if incorrectly assembled, charged, short-circuited, or damaged. Always use suitable protection/BMS, proper insulation, correct charging equipment, and appropriate safety precautions. Do not attempt this project unless you understand Li-ion battery safety.
👍 Like the video
💬 Comment your thoughts
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