DIY powerful metal detector | Find elusive fine gold, everywhere

how to make a powerful pulse induction metal detector (PI Gold Detector) Schematic & PCB: https://drive.google.com/drive/folder... How To Make PCB At Home (Homemade PCB):    • How To Make PCB  At Home (Homemade PCB)   Components and supplies: 110 ohm Resistor 750 ohm Resistor 47K ohm Resistor X3 4.7K ohm Resistor X2 15K ohm Resistor 68K ohm Resistor X3 3.3K ohm Resistor 150 ohm Resistor 680 ohm Resistor X2 470 ohm Resistor 1.5K ohm Resistor 10K ohm Resistor 820 ohm Resistor 330 ohm Resistor 51K ohm Resistor X2 220 ohm Resistor X2 1K ohm Resistor 1.5M ohm Resistor 1.2K ohm Resistor 18K ohm Resistor 2.2K ohm Resistor X2 1N4148 Diode X8 1N4937 Fast Recovery Diode X2 22K Ohm Potentiometer 50K Ohm Volume Potentiometer 5K Ohm Volume Potentiometer 1K Ohm Volume Potentiometer 1uF, 16V Tantalum Capacitor X5 22uF, 25V Tantalum Capacitor 10uF, 16V Tantalum Capacitor X6 1nF, 100V MKT Capacitor 10nF, 100V MKT Capacitor X8 100nF, 100V MKT Capacitor X4 220nF, 100V MKT Capacitor 470uF, 16V Electrolytic Capacitor 100uF, 25V Electrolytic Capacitor 22uF, 16V Electrolytic Capacitor 220pF Ceramic Capacitor X2 IRF640 Power MOSFET 2N3819 N-Channel JFET Transistor 2N4125 or BC327 Transistor LM1117-ADJ Low-Dropout Linear Regulator NE555 Timer IC X5 TL081 Op-Amp IC X2 7660 IC [Switch Capacitor Voltage Converter] 79L05 Negative Voltage Regulator 78L05 Voltage Regulator 2-Pin Screw Terminal Block Connector X2 Passive Buzzer (12V) DC Mini Digital Voltmeter (3-Wire, 0.28 inch, 0.36V/DC) Copper Wire 0.8mm Sealed Lead Acid Battery (12V / 1.2 to 4.5Ah) Video parts list: 00:00 Schematic and PCB of the metal detector circuit 00:27 Assembling the metal detector circuit 17:09 Training on making a coil for a metal detector kit 20:20 Battery connection to metal detector kit 21:05 Testing the metal detector circuit