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  2. Doorbell - Wikipedia

    en.wikipedia.org/wiki/Doorbell

    Doorbell mechanism from 1884 in Andrássy Avenue, Budapest Antique mechanically operated shop doorbell on a torsion spring. William Murdoch, a Scottish inventor, installed a number of his own innovations in his house, built in Birmingham in 1817; one of these was a loud doorbell, that worked using a piped system of compressed air. [1]

  3. Knob-and-tube wiring - Wikipedia

    en.wikipedia.org/wiki/Knob-and-tube_wiring

    Knob-and-tube wiring (sometimes abbreviated K&T) is an early standardized method of electrical wiring in buildings, in common use in North America from about 1880 to the 1930s.

  4. Electric bell - Wikipedia

    en.wikipedia.org/wiki/Electric_bell

    Older electric doorbell. An electric bell is a mechanical or electronic bell that functions by means of an electromagnet.When an electric current is applied, it produces a repetitive buzzing, clanging or ringing sound.

  5. Wiring diagram - Wikipedia

    en.wikipedia.org/wiki/Wiring_diagram

    Architectural style wiring diagram, with lamps and switches shown symbolically in their physical locations on the plan view of the building. Architectural wiring diagrams show the approximate locations and interconnections of receptacles, lighting, and permanent electrical services in a building.

  6. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    Electrical symbols for wiring [vague]. Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. I and M Electric Co. Building-Transformer House and Garage

    en.wikipedia.org/wiki/I_and_M_Electric_Co...

    It features decorative coping and belt courses and a parapet. the transformer house is a 1 + 1 ⁄ 2-story brick building with terra cotta coping constructed in 1929. The I and M Electric Co. Building was built in 1911, and is a four- to five-story, Classical Revival style brick and stone building.

  9. File:Doorbell Wiring Pictorial Diagram.svg - Wikipedia

    en.wikipedia.org/wiki/File:Doorbell_Wiring...

    English: Pictorial diagram of electric doorbell wiring with a dual-solenoid chime, front door pushbutton switch and back door pushbutton switch. Date 13 November 2013, 20:03:54