Wednesday, September 26, 2012

Emerging Technologies Tetrad

Module #2 Assignment: Transistor

Enhances: It is a semi-conductor that is used to amplify and switch electronic signals and electric power. Key component to all electronics.

Obsoletes: vacuum "electron" tube

Retrieves/Rekindles:  Has the ability to use a small signal applied between one pair of its terminals to control a much larger signal at another pair of terminals. A transistor can control its output in proportion to the input signal; that is, it can act as an amplifier.

Reverses:  vacuum tubes that have an improved electron mobility and can function at a higher voltage.

Reference:
http://en.wikipedia.org/wiki/Transistor


Replica of 1st transistor

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