Yellowstone viewers rejoice as spin-off starring two fan-favorite characters confirmed READ: Here is Biden’s full list of clemencies 23 Most Loyal Guard Dog Breeds to Consider Adding to Your ...

which contains many cool project ideas, including a simple metal detector circuit. It’s a very basic concept that uses a coil of copper wire as a home-made choke — when metal or a magnet comes ...

To start with, [zaphod] had to research how a metal detector actually works. After reviewing the pros and cons of various approaches, the decision was made to go with a beat frequency oscillator ( ...