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2. 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.

3. Antique radio - Wikipedia

   en.wikipedia.org/wiki/Antique_radio

   Today's radios are usually uneconomical to repair because mass production and technological improvements in numerous areas have made them so inexpensive to buy, while the cost of human labor and workshop overheads have increased greatly in comparison. Typical insides of an antique radio, showing the vacuum tubes.

4. Vintage amateur radio - Wikipedia

   en.wikipedia.org/wiki/Vintage_amateur_radio

   Collins S-Line, featuring separate power supply, receiver, transmitter, and speaker console, c. 1960s. Amateur radio equipment of past eras like the 1940s, 50s, and 60s that are separate vacuum tube transmitters and receivers (unlike modern transceivers) are an object of nostalgia, and many see rehabilitation and on-air use by enthusiasts. [18 ...

5. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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   Get breaking news and the latest headlines on business, entertainment, politics, world news, tech, sports, videos and much more from AOL

6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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   Get the latest news, politics, sports, and weather updates on AOL.com.

7. 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 ...

8. Trump applauds blocked sale of Texas border wall materials - AOL

   www.aol.com/news/trump-applauds-blocked-sale...

   President-elect Trump celebrated the blocked sale of border wall materials following a Friday ruling from a federal judge in Texas. The incoming president, in a Saturday Truth Social post, called ...

9. 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.