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  2. List of 7400-series integrated circuits - Wikipedia

    en.wikipedia.org/wiki/List_of_7400-series...

    These parts are prefixed with 54 instead of 74 in the part number. [1] A short-lived 64 prefix on Texas Instruments parts indicated an industrial temperature range; this prefix had been dropped from the TI literature by 1973. Most recent 7400-series parts are fabricated in CMOS or BiCMOS technology rather than TTL.

  3. Peugeot 407 - Wikipedia

    en.wikipedia.org/wiki/Peugeot_407

    The Peugeot 407 is a large family car produced by the French automaker Peugeot from 2004 to 2011. It was available in saloon , coupé and estate variants, with both diesel and petrol engines . The petrol engines range from 1.8 to 3.0 liters displacement , whereas the diesel engines range from 1.6 to 3.0-liter engines.

  4. R-407C - Wikipedia

    en.wikipedia.org/wiki/R-407C

    R-407c container . R-407C is a mixture of hydrofluorocarbons used as a refrigerant.It is a zeotropic blend of difluoromethane (R-32), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-134a).

  5. Bell 407 - Wikipedia

    en.wikipedia.org/wiki/Bell_407

    The Bell 407 is a four-blade, single-engine, civil utility helicopter. A derivative of the Bell 206L-4 LongRanger , the 407 uses the four-blade, soft-in-plane design rotor with composite hub developed for the United States Army 's OH-58D Kiowa Warrior instead of the two-blade, semi-rigid, teetering rotor of the 206L-4.

  6. Ford AJD-V6/PSA DT17 - Wikipedia

    en.wikipedia.org/wiki/Ford_AJD-V6/PSA_DT17

    The AJD is a family of V6 and V8 turbodiesel engines with a clean-sheet architecture and variable valve timing developed by Ford of Europe for its then-subsidiaries Jaguar and Land Rover, as well as for its partner PSA Group working under the Gemini joint development and production agreement.

  7. Aquarium filter - Wikipedia

    en.wikipedia.org/wiki/Aquarium_filter

    A schematic diagram of an undergravel filter run by both an air displacement and water pump (powerhead) One of the oldest types of filters, the undergravel filters consist of a porous plate which is placed beneath the gravel on the base of the aquarium and one, or more, uplift tubes.

  8. Pitot–static system - Wikipedia

    en.wikipedia.org/wiki/Pitot–static_system

    Airspeed indicator diagram showing pressure sources from both the pitot tube and the static port The pitot–static system obtains pressures for interpretation by the pitot–static instruments. While the explanations below explain traditional, mechanical instruments, many modern aircraft use an air data computer (ADC) to calculate airspeed ...

  9. Area codes 407 and 689 - Wikipedia

    en.wikipedia.org/wiki/Area_codes_407_and_689

    Area code 407 was created in 1988 in a split of area code 305, [1] Florida's original area code of 1947. When assigned, 407 included not only most of Central Florida, but also the Palm Beaches and Treasure Coast. In 1996, Palm Beach, Martin, Indian River, and St. Lucie counties were split from the number plan area and received area code 561.