Electronic Help Care

08/10/2026

21/09/2026

🔊 100W + 100W STEREO AMPLIFIER PROJECT 🔊

Today I'm sharing a complete DIY stereo power amplifier project featuring dual 100W amplifier channels.

The project includes:

🔧 Dual 100W amplifier boards
⚡ Power supply section
🔌 Transformer connection
🔋 Large filter capacitors
🌡️ Large heatsinks
🎛️ Audio control/input board
📐 Circuit diagram
🖥️ PCB layout
🔩 Complete wiring & assembly
🔊 Stereo audio output testing

This project is useful for electronics students, technicians, hobbyists and anyone interested in learning practical audio amplifier construction.

Orginal Creator Electronics Help Care
© Ramen Bairagee
www.electronicshelpcare.net

The complete circuit diagram and PCB layout are available with the project.

💬 What amplifier project should I build next?

Follow Electronic Help Care for more:
• Electronics projects
• Amplifier circuits
• PCB design
• Circuit diagrams
• Electronics repair
• Arduino & ESP projects
• Practical electronics tutorials

🌐 Website:
www.electronichelpcare.com

11/09/2026

I designed and built a Wireless Digital Cricket Scoreboard for the Bangladesh Air Force.

This was not an off-the-shelf product. The scoreboard was custom designed, developed and built by me as an electronics engineering project.

⚡ Main Features
✅ Wireless Score Control
✅ LED Digital Display
✅ Runs & Wickets
✅ Overs Display
✅ Batsman Score
✅ Runs Required
✅ Custom Hardware
✅ Practical Field Use

As an NTVQF Certified Electronics Engineer, I work on different types of custom electronics projects, LED displays, automation, embedded systems, science projects, repairs and special-purpose electronic devices.
This project is one of my proudest examples of turning an electronics idea into a real-world working system.

🎥 Watch the full project video and see how this custom scoreboard was developed.
Designed & Built by — Sr Jewel
NTVQF Certified Electronics Engineer

11/09/2026

Car Subwoofer Not Working? Let's Repair It! 🔧🔊
In this practical repair video, I demonstrate how to troubleshoot and repair a car subwoofer amplifier.

The video focuses on the amplifier PCB, power section, wiring, connectors, components, fault finding, and testing the repaired unit.

⚡ What you'll learn: ✅ Car subwoofer troubleshooting
✅ Car amplifier PCB testing
✅ Power supply checking
✅ Component testing
✅ Wiring inspection
✅ Fault finding
✅ Practical amplifier repair
✅ Final testing

If you're interested in car audio, electronics repair, amplifiers, subwoofers, and DIY electronics projects, follow the page for more practical repair content.
Like 👍 | Share ↗️ | Follow 🔔

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10/09/2026

Moisture Meter

10/09/2026

Don’t throw away your old UPS transformer! In this video, I show how an old UPS transformer can be tested and used to build a practical 12V battery charger.

🔧 Transformer Testing
⚡ Voltage Measurement
🔌 Rectifier Connection
🔋 12V Battery Charging
🛠️ DIY Electronics Project
📏 Practical Multimeter Testing

This is a hands-on electronics project focused on transformer testing, circuit modification, and battery charger development.

👍 If you find this project useful, Like, Share & Follow for more DIY electronics, repair, and engineering projects.

⚠️ Safety Warning: Working with AC mains voltage can be dangerous. Always use proper insulation, safety equipment, and safe working procedures. Do not work with mains electricity unless you have the necessary knowledge and experience.

09/09/2026

🔊 How do you connect an 8-transistor audio amplifier?

In this practical electronics project, we show the actual wiring and connection process of an 8-transistor audio amplifier circuit.

You'll see:

⚡ Transformer connection
🔊 Speaker output connection
🎵 Audio input connection
🔌 Power supply wiring
🛠️ Amplifier PCB connections

If you're interested in DIY audio amplifiers, transistor power amplifiers, electronics repair and practical circuit building, this project is for you.

What part of an amplifier connection do you find the most difficult?