To wit, we present this compact two-tube “spy radio” transmitter. From the look around his shack — which we love, by the way — [Helge Fykse (LA6NCA)] really has a thing for old technology.

That’s why we’re not surprised to see him with a mammoth AM radio station transmitter in his shop. That it’s a transmitter that you can walk into while it’s energized was a bit of a ...