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  2. Tally light - Wikipedia

    en.wikipedia.org/wiki/Tally_light

    The common interfaces are SDI, Ethernet, USB, and HDMI (the latter's main role is outputting the video signal, but it can also accept a number of control commands). Alternatively, a tally light can be a separate device mounted on the camera body, lens, or tripod, but not connected to the camera electronically.

  3. Cathode-ray tube - Wikipedia

    en.wikipedia.org/wiki/Cathode-ray_tube

    In 1926, Kenjiro Takayanagi demonstrated a CRT TV receiver with a mechanical video camera that received images with a 40-line resolution. [22] By 1927, he improved the resolution to 100 lines, which was unrivaled until 1931. [23] By 1928, he was the first to transmit human faces in half-tones on a CRT display. [24]

  4. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    Another sign that could mean that the HVAC system is not running perfectly fine is if there is a bad smell to the air that it is providing. That often means that the air filters need to be replaced. Changing the air filters on an HVAC system is really important because they are exposed to a lot of dust depending on where your HVAC system is and ...

  5. Camera - Wikipedia

    en.wikipedia.org/wiki/Camera

    This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. Optical device for recording images For other uses, see Camera (disambiguation). Leica camera (1950s) Hasselblad 500 C/M with Zeiss lens A camera is an instrument used to capture and store images and videos, either digitally via an electronic image sensor, or chemically via a light ...

  6. Alien 3 - Wikipedia

    en.wikipedia.org/wiki/Alien_3

    Ferguson's work was not well received in the production, particularly by Sigourney Weaver, who felt Ferguson made Ripley sound like "a pissed-off gym teacher". Short on time before filming was due to commence, Hill and Giler took control of the screenplay themselves, melding aspects of the Ward/Fasano script with Twohy's earlier prison planet ...

  7. Forced-air gas - Wikipedia

    en.wikipedia.org/wiki/Forced-air_gas

    Each room has an outlet from the duct system, often mounted in the floor or low on the wall – some rooms will also have an opening into the cold air return duct. Depending on the age of the system, forced-air gas furnaces use either a pilot light or a solid-state ignition system (spark or hot surface ignition) to light the natural gas burner. [3]

  8. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    Close-up image of a surface-mount LED Close-up of an LED with the voltage being increased and decreased to show a detailed view of its operation A bulb-shaped modern retrofit LED lamp with aluminum heat sink, a light diffusing dome and E27 screw base, using a built-in power supply working on mains voltage. A light-emitting diode (LED) is a ...

  9. List of Punky Brewster episodes - Wikipedia

    en.wikipedia.org/wiki/List_of_Punky_Brewster...

    Punky claims illness at the end of lunch, and goes to the theater in disguise while Henry is working. But there are problems: Henry gets called in the middle of a job about Punky's illness, Punky's poor disguise gets a ticket taker named Claude (Lance Wilson-White) fired from the theater when he falls for it, and Cherie's attempts to lie for ...

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