The First Transistor
“Bell Labs, Murray Hill, December 23, 1947. Bardeen, Brattain, and Shockley demonstrate the point-contact transistor on a lab bench. Foreground shows the small germanium device wired up to an oscilloscope and a speaker amplifying a soft tone; midground reveals the three physicists in shirtsleeves leaning in; oscilloscope traces glow green in the dim quiet of an after-hours laboratory.”