This part of the metal detector is in constant contact with the soil. It is easy to damage against stones, branches and other elements of the relief. In order to protect the coil, it is better to assemble it from pieces of thick plywood. The thickness of the plywood should be at least 5 mm. Before designing the coil, it is necessary to determine its diameter. This is a very important point. The optimal diameter for detecting gold objects and small nuggets is from 130 to 150 mm.
Initially, the frequency and volume of the received signal is adjusted. To do this, you need to turn on the power of the metal detector, and by rotating the footrest resistor R5, find the position with the loudest and most frequent signal. The found position is fixed. Next, you will need an item made of gold. To it you need to bring the coil of the device. A low frequency signal should appear. By rotating the resistor R4, it is necessary to achieve the highest sound of the signal. The position of the element also needs to be fixed.
metal detector using 555 timer project report
Build Your Own Metal Detector
how to make a homemade metal detector
homemade metal detector coil
Can't Believe How Much GOLD I Found! Underwater Metal Detecting (Best Finds 2020)
waterproof gold detectorIn the category homemade metal detector - how to make a gold detector at home more articles and learn more information about waterproof gold detector Reviews Price Specifications Features Image manuals videos Accessories All this in metal detectors for gold.
