Who invented the vacuum tube?

Answer While perfecting the light bulb in 1883, Thomas Edison accidentally discovered electric current can travel through a vacuum without the assistance of wire, according to the Public Broadcasting Serv... Read More »

Top Q&A For: Who invented the vacuum tube

Who invented the radio vacuum tube?

The origins of the vacuum tube are found in Thomas Edison's accidental invention of the diode in 1884, which he did by inserting a sheet of metal between two glowing filaments while working on the ... Read More »

Who invented the triode vacuum tube?

Lee De Forest invented the triode vacuum tube in 1906. He did so by adding a third electrode, known as grid, between the filament and the plate of a diode. It enabled the amplification of a weak vo... Read More »

What is a vacuum tube?

Vacuum tubes were the predecessors of transistors--essentially, high-voltage amplification devices that made many of technological advances possible. New technologies--some involving microwaves--ar... Read More »

What Is a Vacuum Tube System?

A vacuum tube or pneumatic tube system refers to a method of transporting items along a system of enclosed pipes by the flow and varying pressure of air. This type of system works well in moving cl... Read More »