23 dic 1947 anni - Transistor Radio
Descrizione:
Small portable radio receiver that uses transistors in its circuits. Bell Laboratories demonstrated the first transistor on December 23, 1947. The scientific team at Bell Laboratories responsible for the solid-state amplifier included William Shockley, Walter Houser Brattain, and John Bardeen.Aggiunto al nastro di tempo:
Data:
23 dic 1947 anni
Adesso
~ 77 years ago