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2. Buzzer - Wikipedia

   en.wikipedia.org/wiki/Buzzer

   A buzzer or beeper is an audio signaling device, [1] which may be mechanical, electromechanical, or piezoelectric (piezo for short). Typical uses of buzzers and beepers include alarm devices , timers , train and confirmation of user input such as a mouse click or keystroke.

3. Vibrator (electronic) - Wikipedia

   en.wikipedia.org/wiki/Vibrator_(electronic)

   A vibrator was used to provide pulsating DC which could be converted to a higher voltage with a transformer, rectified, and filtered to create higher-voltage DC. It is essentially a relay using normally closed contacts to supply power to the relay coil, thus immediately breaking the connection, only to be reconnected very quickly through the ...

4. Faraday (company) - Wikipedia

   en.wikipedia.org/wiki/Faraday_(company)

   They also rebranded coded fire alarm stations from Holtzer-Cabot. From the 1930s to the 1960s, Faraday was known as " Sperti -Faraday", and the company moved to Adrian, Michigan . [ 1 ] From the late 1960s up until present, many companies rebranded Faraday's popular line of notification appliances, including Simplex , Standard Electric Time ...

5. Electric bell - Wikipedia

   en.wikipedia.org/wiki/Electric_bell

   An electric buzzer uses a similar mechanism to an interrupter bell, but without the resonant bell. They are quieter than bells, but adequate for a warning tone over a small distance, such as across a desktop. A buzzer or beeper is an audio signalling device, which may be mechanical, electromechanical, or piezoelectric.

6. The Mosquito - Wikipedia

   en.wikipedia.org/wiki/The_Mosquito

   The Mosquito or Mosquito alarm is a machine used to deter loitering by emitting sound at high frequency. In some versions, it is intentionally tuned to be heard primarily by younger people. In some versions, it is intentionally tuned to be heard primarily by younger people.

7. Man United forward Amad Diallo signs contract extension to 2030

   www.aol.com/man-united-forward-amad-diallo...

   Manchester United forward Amad Diallo has signed a contract extension with the Premier League club until 2030. Diallo, who scored a late equalizer in a 2-2 draw with league leader Liverpool on ...

8. Live coverage: Senate sends bill to avert shutdown to Biden’s ...

   www.aol.com/live-coverage-shutdown-looms-johnson...

   The Senate has sent a stopgap government funding bill to President Biden’s desk, averting a shutdown. The bill passed the House earlier in the day, wrapping up a whirlwind week on Capitol Hill ...

9. Alarm clock - Wikipedia

   en.wikipedia.org/wiki/Alarm_clock

   This is an accepted version of this page This is the latest accepted revision, reviewed on 27 December 2024. Type of clock A traditional wind-up (key-wound), mechanical spring-powered alarm clock An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to awaken people from their night's sleep or ...