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The DIY metal detector kit is an excellent way to explore the fundamentals of electronics and metal detection. Designed for beginners and hobbyists, this kit helps you build a fully functional metal detector that operates on the principle of high-frequency oscillation. By adjusting the potentiometer, the oscillator can be tuned to detect metal objects accurately.

This DIY kit is designed to detect metal by weakening the oscillation when the AC voltage exceeds 0.6V, signaling the presence of metal and triggering the buzzer. Ideal for detecting metal in proximity to elevators or for tracking vehicles on roads, this metal detector is highly useful in real-world applications.

Key Benefits

1. Learn the fundamentals of high-frequency oscillation circuits.
2. Easy-to-follow instructions for assembling your own metal detector.
3. Detects metal objects in various environments, such as near elevators or vehicles.
4. Includes an adjustable potentiometer to fine-tune the detection sensitivity.
5. Suitable for hobbyists, students, and DIY electronics enthusiasts.

DIY Metal Detector Kit Specifications

• Resistors: 220k (R1), 2k2 (R2)
• Capacitors: 104 ceramic (C1, C4), 222 polyester (C2, C3), 100uf point solution capacitor (C6)
• Transistors: 9018 (Q1), 9015 (Q2), 9012 (Q3)
• 100-ohm potentiometer (RW)
• Buzzer (LS1)
• PCB board

Build Instructions

1. Start by soldering the resistors (R1, R2) to their designated positions on the PCB.
2. Next, install the ceramic capacitors (C1, C4) and polyester capacitors (C2, C3). Be sure to check the orientation before soldering.
3. Solder the 100uf point solution capacitor (C6) in place.
4. Install the transistors (Q1, Q2, Q3) carefully, ensuring you identify the correct polarity.
5. Mount the 100-ohm potentiometer (RW) to the board and adjust it according to your detection sensitivity preference.
6. Connect the buzzer (LS1) to the circuit. This will alert you when metal is detected.
7. Once all components are installed, connect a power supply and adjust the potentiometer until the detector starts functioning correctly.
8. Test the detector by placing a metal object near the sensor and listen for the buzzer sound.

DIY metal detector kit Pack Contents

• Resistors (220k, 2k2)
• Ceramic and polyester capacitors
• 100-ohm potentiometer
• Transistors (9018, 9015, 9012)
• Buzzer
• PCB board

Product Summary

This DIY metal detector kit offers a hands-on approach to learning electronics and metal detection. Featuring essential components like resistors, capacitors, transistors, and a buzzer, this kit allows you to build a functional metal detector that detects objects based on high-frequency oscillation. It is perfect for hobbyists, students, and anyone interested in DIY electronics. The included components are easy to assemble, and the detailed build instructions ensure that the learning process is both fun and informative.