Tuesday, October 15, 2013

Transistorized Response

What technology was used prior to transistors to amplify a signal? How did it change the history of communications in the US? What was the metaphor that the video used to describe how this technology worked?

-They had a triode in a vacuum tube. It was a device that could amplify signals, including, it was hoped, signals on telephone lines as they were transferred across the country from one switch box to another. It allowed the signal to be amplified regularly along the line, meaning that a telephone conversation could go on across any distance as long as there were amplifiers along the way. But the vacuum tubes that made that amplification possible were extremely unreliable, used too much power and produced too much heat.

Describe the break through in the 1947 that made the transistor a reality?


-Brattain decided to try dunking the entire apparatus into a tub of water. Surprisingly, it worked a bit. Brattain began to experiment with gold on germanium, eliminating the liquid layer on the theory that it was slowing down the device. It didn't work, but the team kept experimenting using that design as a starting point. End of 1947, they built the point-contact transistor, made from strips of gold foil on a plastic triangle, pushed down into contact with a slab of germanium.

What do we learn from watching this video about group and team dynamics that we can apply to our own situation? What was successful about this team? What was its downfall?


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What medic and social changes occurred as a result of the transistor?


-Today, Intel produces billions of transistors daily on its integrated circuits, yet Bardeen, Brattain, and Shockley earned very little money from their research. Nonetheless, Shockley's company was the beginning of Silicon Valley. In the 1950s and 1960s, most U.S. companies chose to focus their attentions on the military market in producing transistor products. That left the door wide open for Japanese engineers like Masaru Ibuka and Akio Morita, who founded a new company named Sony Electronics that mass-produced tiny transistorized radios. The transistorized radio changed the world, opening up the information age.

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