33
/es/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
4287256
396897
2

1 ene 1906 año - Audion triode vacuum tube Invented

Descripción:

an electronic valve that could amplify weak electrical signals. By 1915, it was in use in long-distance telephone circuits that made conversations between New York and San Francisco practical.

Añadido al timeline:

fecha:

1 ene 1906 año
Ahora mismo
~ 119 years ago

Fotos: