History of Microphone (go back »)

August 23 2007, 1:21 AM

Microphone is the switch work piece which can transform voice signals into current signals.

The history of Microphone can go back to the end of 19th Century. Many scientists like Alexander Graham Bell applied themselves to find the better way to get the sound in order to improve the latest invention at there time—telephone. During that time, they invented Liquid Microphone & Carbon Microphone, but these ones did not have a good effect, only could be used constrainedly.

 

At 20th Century, many new microphone tech. developed, including the ones largely used today, like Capacitance Microphone & Electric Actuator Microphone.

 

http://www.kendoo.com/motorola-two-way-radio-battery.asp

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