LM386 Mono Amplifier Board 20x Gain 10K Adjustable DIY Module
LM386 Mono Amplifier Board 20x Gain 10K Adjustable DIY Module
LM386 Single Channel Audio Amplifier Board – 20x Gain, 10K Adjustable Volume
Take your DIY electronics projects to the next level with this compact LM386 Mono Amplifier Module. Featuring a 20x gain circuit design and a 10K adjustable resistor for fine-tuned volume control, this versatile board is ideal for hobbyists, makers, and engineers building custom speaker systems, intercom circuits, radio receivers, and more.
Key Features
- Onboard LM386 Chip: Industry-trusted low-voltage audio amplifier IC renowned for stable, high-quality sound amplification and reliable performance across a wide range of applications.
- 20x Gain Circuit Design: Delivers significant amplification of audio signals, producing louder and clearer output from small signal sources.
- 10K Adjustable Resistor: Onboard potentiometer lets you dial in exactly the amplification level you need — no external components required.
- Speaker Terminal Block: Onboard terminal block makes connecting your speaker fast, secure, and solder-friendly.
- Power Indicator LED: Built-in LED confirms power status at a glance, keeping your build organized and easy to debug.
- Exposed Main Pins: All key LM386 chip pins are brought out to headers, allowing direct audio signal input and easy integration into breadboard or custom PCB layouts.
- Compact & Lightweight: At just 41 × 14 × 14 mm (1.61 × 0.55 × 0.55 in), this board fits into tight enclosures and portable builds with ease.
- Wide Operating Voltage: Compatible with 5V to 12V power supplies, making it suitable for Arduino, Raspberry Pi, and other microcontroller platforms.
Specifications
| Chip | LM386 |
| Gain | 20x (fixed circuit design) |
| Volume Control | 10K adjustable resistor (onboard) |
| Operating Voltage | 5V – 12V DC |
| Dimensions | 41 × 14 × 14 mm / 1.61 × 0.55 × 0.55 in |
| Channel | Single (Mono) |
| Condition | New |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1 × LM386 Digital Mono Amplifier Module
Perfect For
- Arduino & Raspberry Pi audio projects
- DIY speaker amplifier circuits
- Intercom and walkie-talkie builds
- Radio receiver output stages
- Electronics hobbyist and maker kits
- Educational electronics prototyping
Please Note: Due to differences in monitor settings and lighting conditions, the actual product color may vary slightly from images. Please allow ±1–2 cm measuring deviation due to manual measurement.
For additional guidance on electronic component safety standards and best practices, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: What voltage does the LM386 amplifier module operate at?
A: The LM386 mono amplifier module operates on a DC supply voltage ranging from 5V to 12V, making it compatible with most microcontroller platforms including Arduino and Raspberry Pi.
Q: What is the gain of this LM386 amplifier board?
A: The board features a 20x gain circuit design. The onboard 10K adjustable resistor allows you to fine-tune the amplification level to suit your specific application, giving you flexible audio output control.
Q: Is this amplifier module suitable for beginner DIY electronics projects?
A: Absolutely. The module is designed for ease of use — all key LM386 chip pins are pre-exposed on the board for direct audio signal input, and the onboard speaker terminal block simplifies connections, making it an excellent choice for beginners and experienced makers alike.
Q: Can this board be used with an Arduino or Raspberry Pi?
A: Yes. The 5V–12V operating range and compact form factor make this LM386 amplifier module a great fit for Arduino, Raspberry Pi, and other microcontroller-based audio projects. Simply connect your audio signal input, power supply, and speaker to get started.