Metal Detector Schematics Circuits. Some circuits would be illegal to operate in most countries and others are dangerous to construct and should not be attempted by the inexperienced. Metal detector schematic circuit diagram here you are at our website.
1 x tda0161 proximity detector ic. 2 2µf capacitor 2 pieces speaker 8ω 170turns of 10cm diameter coil any gauge would work metal detector circuit diagram and working. A faraday shield may be added to reduce ground effect and capacitive coupling and this is wired to 0v.
1 x tda0161 proximity detector ic.
1 x tda0161 proximity detector ic. 2 x 47nf capacitors ceramic capacitor code 473 1 x 1 kω resistor 1 4 watt 1 x 330 ω resistor 1 4 watt 1 x 100 ω resistor 1 4 watt 1 x 5 kω potentiometer. First the radio and the circuit are placed close. The 555 ic timer here acts as a square wave generator and it generate pulses with frequencies audible to human.
