DIY simple Metal detector

PCB Prototype for $2(Any Color): https://jlcpcb.com
How to Get PCB Cash Coupon: https://bit.ly/2GMCH9w
Download archive http://www.kit-shop.org/zip/metal.zip
Buy metal detector http://ali.pub/2vg3lq
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CD4011 http://ali.pub/2vg3ce
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Resistors http://ali.pub/2vg3je
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Capacitors http://ali.pub/2vg3u3
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My laboratory equipment
Laboratory power supply http://ali.pub/2tmanr

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Multimeter 1 http://ali.pub/2tm7hm
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Multimeter 2 http://ali.pub/2tm7xk
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Multimeter 3 http://ali.pub/2tmcks
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Multimeter 4 http://ali.pub/2tm9qb
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Current clamp http://ali.pub/2tm9yo
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Capacitance and inductance meter http://ali.pub/2tm945
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Universal Signal Generator http://ali.pub/2tmgij
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Oscilloscope http://ali.pub/2tmb1d
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Transistor tester http://ali.pub/2tma7t
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Thermometer http://ali.pub/2tm8sa
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Frequency meter http://ali.pub/2tmigc
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Electronic load http://ali.pub/2tmagy
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Intelligent Chip Tester http://ali.pub/2tmicu
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Soldering Iron http://ali.pub/2tmbm6
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Microscope
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