Metal detector circuit diagram 3


Posted on Feb 7, 2014

The metal detector is composed of the probe oscillator, reference oscillator and audio amplifier and other components, and the circuit is shown as the chart. Probe oscillator consists of transistors VI, V2 and detection coil L1, capacitor C1 and so on. Reference oscillator consists of transistors VI, Y3 and inductor L2, capacitor C3 and other comp


Metal detector circuit diagram 3
Click here to download the full size of the above Circuit.

onents. Audio amplifier is composed of audio power amplifier IC IC, volume potentiometer RP and capacitors C6 ~ C8 RP and so on. R1 uses small or variable resistor; R2 ~ R5 select 1/4W metal film resistors. RP uses small membrane potentiometer. C1 uses high-frequency ceramic capacitor; C2, C5 ~ C8, CIO use aluminum electrolytic capacitor with the voltage in 10Y; C3 uses ceramic fine capacitor; C4, C9 select polyester or monolithic capacitors.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Miniature High-Rate ESC with BEC and Brake
    Led indicates logic states
    Running Message Display
    siren alarm circuit diagram usng lm358
    smart amp delay
    Voltmeter with LED for car battery PCB
    Radio Circuits
    Multi-Melody Generator With Instrumental Effect
    Yaesu G-400 Antenna Rotator Controller
    Metal detector circuit diagram 5
    Reverse Engineering a 1.5 inch Photoframe
    Practical differentiator
    The Q value of the variable notch filter



    Top