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  2. Electric bell - Wikipedia

    en.wikipedia.org/wiki/Electric_bell

    A buzzer or beeper is an audio signalling device, which may be mechanical, electromechanical, or piezoelectric. Typical uses of buzzers and beepers include alarm devices, timers and confirmation of user input such as a mouse click or keystroke.

  3. 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.

  4. Vibrator (electronic) - Wikipedia

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

    Schematic diagram of a typical circuit to convert low voltage DC to high voltage DC The vibrator was a device with switch contacts mounted at the ends of flexible metal strips. In operation, these strips are vibrated by an electromagnet , causing the contacts to open and close rapidly.

  5. Glossary of electrical and electronics engineering - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_electrical_and...

    DC-to-DC converter A circuit that takes power from a DC source and generates a different DC voltage. degaussing The process of reducing the residual magnetic field in a metallic object, such as a ship. delay line A circuit component that introduces a delay in a signal. delta-wye transformer One type of connection of a three-phase transformer ...

  6. 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 ...

  7. Allison Holker responds to criticism she’s ‘disgracing’ late ...

    www.aol.com/allison-holker-responds-criticism...

    Holker addressed Gibson's concerns in the comments, writing, “I’ll always love you. Just trying to help people feel safe to ask for help and support.”

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