Walter Brattain was the experimentalist who physically built the first working transistor at Bell Labs in 1947 — the device that made the digital age possible. He shared the Nobel Prize with William Shockley and John Bardeen, but history mostly forgot him because Shockley grabbed the credit and Bardeen moved on to win a second Nobel. Brattain's hands built the future, and his name barely registers in the story.

This episode traces Brattain from his cattle ranch childhood through the Bell Labs semiconductor research, the construction of the point-contact transistor, and the Nobel Prize overshadowed by Shockley's ego.

• Brattain's rural Washington State childhood and the physics education that brought him to Bell Labs
• The semiconductor research group and the race to build a solid-state amplifier
• The construction of th ...