by DrB | Episodes
Transistors What is a transistor and why is it important? In this episode of Science LIVE, Dr. Roger Billings explores how transistors control electric current, replaced bulky vacuum tubes, and made modern electronics possible—from radios to computers and smartphones....
by DrB | Episodes
Vacuum Tube Amplifier 📌 Science Fair Idea – R-51 Radio What’s a vacuum tube amplifier? Come explore with Dr. Roger Billings on Science LIVE! Learn about the technology that made it possible to boost electrical signals and amplify sound. Discover how vacuum...
by DrB | Episodes
The Vacuum Tube Diode What invention helped spark the age of electronics? In this episode of Science LIVE, Dr. Roger Billings and the Protégés break down the vacuum tube diode—one of the earliest electronic components that made controlling the flow of electrons...
by DrB | Episodes
The Edison Effect What if Thomas Edison’s greatest discovery wasn’t the light bulb? In this episode of Science LIVE, Dr. Roger Billings explores the Edison Effect and how Edison’s experiments paved the way for electron tubes and modern electronics. Discover why this...
by DrB | Episodes
The Relay How does a simple relay help us understand electricity and circuits? In this episode of Science LIVE, Roger Billings breaks down the science behind the relay—the clever electromagnetic switch that makes it possible to control circuits with precision. Learn...
