Gilcélio
Vacuum tube
Entry for my Iron Builder with Kos brick. The secret ingredient for this round is 2 x 2 Domes in Dark Blue.
Invented in about 1905 by Ambrose Fleming, vacuum tubes were a basic component for electronics throughout the first half of the twentieth century, which saw the diffusion of radio, television, radar, sound reinforcement, sound recording and reproduction, large telephone networks, analog and digital computers, and industrial process control
Vacuum tube
Entry for my Iron Builder with Kos brick. The secret ingredient for this round is 2 x 2 Domes in Dark Blue.
Invented in about 1905 by Ambrose Fleming, vacuum tubes were a basic component for electronics throughout the first half of the twentieth century, which saw the diffusion of radio, television, radar, sound reinforcement, sound recording and reproduction, large telephone networks, analog and digital computers, and industrial process control