Tuesday, June 26, 2012

Alarm Clock And Radio

Alarm Clock And Radio

Traditional mechanical alarm clocks have one or two bells that ring by means of a mainspring that drives a gear that propels a hammer back and forth between the two bells or between the interior sides of a single bell. In some models, the back encasement of the clock itself acts as the bell. In an electric bell-style alarm clock, the bell is rung by an electromagnetic circuit and armature that turns the circuit on and off repeatedly.

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

Alarm Clock And Radio

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