Beyond the power variant, it sometimes seems as ... But they have a rich history, going back through the silicon era to germanium junction transistors, and thence to the original devices.

[Doug’s] rendition uses the warm sounds of germanium transistors in a design that produces professional results. But if you need something a little bit less serious try the stomp-box.

This was the very first transistor ever made, built by Walter Brattain with the help of John Bardeen. It was made of two gold foil contacts sitting on a germanium crystal. Current coming in one ...

separate current starts flowing across the germanium and out the second contact. A little current can alter the flow of a much bigger one, effectively amplifying it. Of course, a transistor in a ...

Power bipolar transistors are semiconductors in which a base n-type or p–type layer is sandwiched between emitter and collector layers of the opposite type. There are two polarities available: PNP and ...

Bipolar transistors are preferred for high speed switching applications and as high-power amplifiers for systems with large current flow ... Material - Transistors are most commonly composed of one of ...

A major breakthrough came in 1947, when John Baden, William Shockley and Watter Brattain of Bell labs unveiled the first functioning point contact Germanium transistor. In 1950, Shockley developed the ...

Stuttgart, Jülich, Leibniz, and CEA-LETI group create laser solely from Group IV elements.

Scientists have developed the first electrically pumped continuous-wave semiconductor laser composed exclusively of elements from the fourth group of the periodic table -- the 'silicon group'. Built ...