DIY powerful metal detector | Find elusive fine gold, everywhere

Описание: 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