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Title: The Telephone

Essay Details

Subject: Technology
Date: June 30, 2005
Length: 6 / 1525
No of views: 0
Essay rating: good 0, average 0, bad 0 (total score: 0)

Essay text:

At the other end the current is transformed back to speech. THE RECEIVER The receiver turns an ever varying current back to speech. A permanently magnetized soft iron core is covered in many turns of very fine wire. Through the wire, the electrical current is applied...

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The currents attract and repel an iron diaphragm. By the vibrating actions the diaphragm does, a different pressure is created and these pressures are translated by ear into intelligible speech. TELEPHONE NETWORKS If you have ever opened up a phone (do not try this at home, you might screw it up) you will probably see a PC (printed circuit) board...

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