AM radios are relatively simple devices, and building one is a good way to start exploring the world of radio communications. [GreatScott] does exactly this in the video after the break, building both ...

Building radio receivers from scratch is still a popular project since it can be done largely with off-the-shelf discrete components and a wire long enough for the bands that the radio will receive.

It's easy to become bored spending time in airports. After all, you can do only so much work on a notebook computer with no reference material around. So, relax and have some fun at the airport–build ...