Thoughts on this point (1 Viewer)

[brollyman_27]

I was wondering if any one could help me on this trouble some dot point

Gather process and present secondary information to discuss how the short comings in available communication technology lead to an increased knowledge of the properties of materials with particular attention to the invention of the transistor

Any help or thoughts on this would be much appreciated
Cheers

 

[rnitya_25]

hsc.csu.edu.au

Radio and electronics required the ability to increase the voltages of signals to drive loudspeakers and other electrical devices. This could be achieved by vacuum tubes.
The tubes however were fragile, lost vacuum slowly and the electrodes corroded.

In 1948 Bardeen, Brattain and Shockley discovered the transistor. It consists of an n-type semiconductor, called the base, between two p-type semiconductors, called the emitter and the collector.
A small AC current in the emmitter-base circuit produces a large current flow in the emmitter-collection circuit that is proportional to the AC current in the emmitter-base circuit. This is a transistor amplifier.

The transistor is small, long lasting and reliable, not depending on any moving parts. It quickly replaced the vacuum tube in many electronic devices.