Most radio circuits are tuned to pretty close tolerances and going from 27 MHz to 50 MHz seemed like quite a leap. The answer? An Arduino and a few other choice pieces of circuitry.

This unconventional Arduino-based FM receiver is the result of one such inventory overflow, and even though it may take the long way around to listening to NPR, [Kevin Darrah]’s build has some ...

London has a rich history of underground radio stations, but what if we flipped that, and turned London's Underground into a radio? Well it'd look like this. The circuit-board radio project is a ...