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  2. Texas wants to buy surplus border wall parts but U.S ... - AOL

    www.aol.com/texas-wants-buy-surplus-border...

    Texas Lt. Gov. Dan Patrick said U.S.-owned border wall materials, which were available for sale, were pulled from an Arizona auction at the government's request. The Lonestar State had shown ...

  3. Tuned radio frequency receiver - Wikipedia

    en.wikipedia.org/wiki/Tuned_radio_frequency_receiver

    This 1920s TRF radio manufactured by Signal is constructed on a breadboard Tuning a TRF receiver, like this 5 tube Neutrodyne set from 1924 with two stages of RF amplification, was a complicated process. The three tuned circuits, controlled by the 3 large knobs, had to be tuned in unison to the new station.

  4. Government auction - Wikipedia

    en.wikipedia.org/wiki/Government_auction

    A government auction or a public auction is an auction held on behalf of a government in which the property to be auctioned is either property owned by the government or property which is sold under the authority of a court of law or a government agency with similar authority. [1] [2] [3]

  5. Antique radio - Wikipedia

    en.wikipedia.org/wiki/Antique_radio

    Audio reproduction quality of TRF sets was limited by the available loudspeakers. "High Fidelity" was not to become a radio marketing concept until the mid-1930s and was not realized until the advent of FM broadcasting. Reaction sets, also known as regenerative receivers, rely on positive feedback to achieve adequate gain. This approach ...

  6. NEW: Salaries for all Tarrant County government employees, as ...

    www.aol.com/salaries-tarrant-county-government...

    Here is our searchable database of Tarrant County government salaries as of October 2022. The county government includes divisions of courts, the Sheriff’s Office, health, elections and more.

  7. Spectrum auction - Wikipedia

    en.wikipedia.org/wiki/Spectrum_auction

    A spectrum auction is a process whereby a government uses an auction system to sell the rights to transmit signals over specific bands of the electromagnetic spectrum and to assign scarce spectrum resources. Depending on the specific auction format used, a spectrum auction can last from a single day to several months from the opening bid to the ...

  8. Heritage Auctions - Wikipedia

    en.wikipedia.org/wiki/Heritage_Auctions

    Heritage Auctions is an American multi-national auction house based in Dallas, Texas. Founded in 1976, Heritage is an auctioneer of numismatic collections, comics , fine art, books, luxury accessories, real estate, and memorabilia from film, music, history, and sports.

  9. Neutrodyne - Wikipedia

    en.wikipedia.org/wiki/Neutrodyne

    The Neutrodyne radio receiver, invented in 1922 by Louis Hazeltine, was a particular type of tuned radio frequency (TRF) receiver, in which the instability-causing inter-electrode capacitance of the triode RF tubes is cancelled out or "neutralized" [1] [2] to prevent parasitic oscillations which caused "squealing" or "howling" noises in the speakers of early radio sets.