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How to make simple metal detector using 555
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Subscribe Here :https://goo.gl/Z1jtos • A very simple metal detector electronic project can be designed using a simple 555 timer integrated circuit . As you can see in the schematic circuit , this electronic project requires few external electronic parts . • This circuit detects metal and also magnets. When a magnet is brought close to the coil, the output frequency changes. • This metal detector project can be powered from a power supply that can provide an output DC voltage between 6 an 12 volt . • If a metal is closer to the L1 coil , will produce a change of output oscillation frequency, that will generate a sound in the 8 ohms speaker . • Subscribe my channel for more Videos: • Subscribe Here :https://goo.gl/Z1jtos
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