In Part 1 of this series on audio fundamentals (“Let’s Talk About Some Basics of Audio for Radio”), we discussed audio problems and how to handle audio transformers. Most of today’s studios don’t need ...

This project was a sort of challenge: designing an audio amplifier capable of delivering a decent output power with a minimum parts count, without sacrificing quality. The Power Amplifier section ...

Here’s a way of transmitting audio that makes it virtually impossible for someone else to listen in. Instead of sending radio waves bouncing all over creation, this uses the focused light of a laser ...