Each proximity sensing LED is made up of five components. Three resistors, an LED, an IR LED, and a photo transistor. The IR LED is chosen specifically for the type of photo transistor being used ...

Feelings rose to a fever pitch of animosity as Shockley continued to claim sole responsibility for the transistor. A classic Bell Labs press photo shows Shockley seated at a microscope ...

transistors act as switches, letting current through to represent the binary digit 1, or cutting it off to represent 0. Every kind of information (words, numbers, pictures, etc.) are converted ...