Metal detector circuit diagram 1

Posted on Feb 6, 2014

The metal detector circuit consists of the fixed frequency oscillator, mixer, detector, detection oscillator and power amplifier circuit, and the circuit is shown as the chart. Fixed frequency oscillator circuit consists of ceramic filter ZC, transistor VI and resistors R1 ~ R4, capacitor C2 and so on. Mixer consists of the mixer tube V2 and capac

Metal detector circuit diagram 1
Click here to download the full size of the above Circuit.

itor C3, resistors R5 ~ R8. Detector is composed of the diodes VD1, VD2, capacitors C8 ~ C12 and resistor R12, potentiometer RP and other components. Detection oscillator is composed of the transistor V3, inductance coil L, capacitors C4 ~ C7, C19 and resistors R9 ~ R11. Audio amplifier is composed of power amplifier integrated circuit IC, resistors R13 ~ R15, capacitors C13 ~ C18 and speaker BL.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Lamp Timer
    Isolated RS-485 and RS-422
    mini audio amplifier electronic
    Eico667 troubleshooting
    burglar alarm using ic timer 555556
    DC motor driver circuit design using LM628 LM629 dedicated motion-control processors
    74121 IC Description TTL Monostable Multivibrator IC
    5 Watt Class-A Audio Amplifier Circuit
    Backup Lamp
    OverUnity Lead Acid Battery Switching Self Battery Charging
    Digital Voltmeter
    Spectrum monitor with memory function circuit
    Lithium battery charging constant current circuit diagram
    Four gas monitor circuit diagram