The metal detector circuit shown here must represent the limits of simplicity for a metal detector, yet the design works surprisingly well. It uses just one 40106 hex Schmitt inverter IC, a capacitor ...

Metal Detector by Jonathan Hare Iron, gold and other metals What is a metal detector? How does it work? How we made the detector Electronics and circuits How the metal detector was made Using the ...

A metal detector used to be an entirely analogue instrument, an oscillator whose frequency changed with the inductance of its sense coil when a piece of metal approached.

Full-size metal detectors are great for narrowing down a region to start digging through. But what if you had a smaller metal detector that could pinpoint the location?

A 10th-century Viking sword fragment was discovered by a metal detectorist scouring a field in the Netherlands. Further research is being done to find out more about the ancient item.

Join me as I test out the Makro Multi-KRUZER metal detector on the beach! Let’s see what hidden treasures are waiting beneath the sand.

Science Archaeology Huge gold nugget found by metal detector enthusiasts set for auction The 'Golden Beauty,' a sword made of meteorites, and more go up for sale on April 23. By Laura Baisas ...

How 7 Friends Testing a Metal Detector Made Britain’s Most Valuable Treasure Find A pastime in a farmer’s field led to the discovery of Norman-era coins valued at more than $5 million.

This circuit was developed to aid manufactures of optical equipment in using linear detectors arrays with their optical setup without requiring specialised knowledge of electronics. These circuits ...

Interestingly, most of the electronics were a small disguised AM radio. BTW, one of the cleverest circuit for an 8pin PIC I ever saw was a metal detector using an LC connected to its external ...

A while ago I bought this non-contact metal detector module from an online store to see how it functions, and what I need to build it. The cheap module I received from China had no instruction manual ...