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2. Percy Spencer - Wikipedia

   en.wikipedia.org/wiki/Percy_Spencer

   By 1939, Barry became one of the world's leading experts in radar tube design. Spencer worked at Raytheon, a contractor for the U.S. Department of Defense, as the chief of the power tube division. While working at Raytheon, Spencer developed a more efficient way to manufacture magnetrons, increasing production from 100 to 2600 magnetrons per day.

3. A.C. Cossor - Wikipedia

   en.wikipedia.org/wiki/A.C._Cossor

   The story of A.C. Cossor Ltd. began in 1859 when the company was established by Alfred Charles Cossor in Clerkenwell, London to manufacture scientific glassware. His eldest son, also called Alfred Charles Cossor joined the company in 1875, and it was he who founded the A.C. Cossor electronics company.

4. List of programs broadcast by the History Channel - Wikipedia

   en.wikipedia.org/wiki/List_of_programs_broadcast...

   The Haunted History of Halloween; Heavy Metal; Heroes Under Fire; Hidden Cities; Hidden House History; High Hitler; High Points in History; Hillbilly: The Real Story; History Alive; History Films; History in Color; History Now; History of Angels [19] A History of Britain; A History of God [20] History of the Joke; The History of Sex; History ...

5. Norman Krim - Wikipedia

   en.wikipedia.org/wiki/Norman_Krim

   By 1948 Raytheon had 98% of the hearing aid tube market. Because of the invention transistor by Bell Labs in 1948, Raytheon, under Krim's direction started making transistors for hearing aids. Their first transistor product was the CK703 point contact transistor.

6. Raytheon - Wikipedia

   en.wikipedia.org/wiki/Raytheon

   The Raytheon Company was a major U.S. defense contractor and industrial corporation with manufacturing concentrations in weapons and military and commercial electronics. Founded in 1922, it merged in 2020 with United Technologies Corporation to form Raytheon Technologies, [3] which changed its name to RTX Corporation in July 2023.

7. Ancient Discoveries - Wikipedia

   en.wikipedia.org/wiki/Ancient_Discoveries

   Ancient Discoveries is a television series that premiered on December 21, 2003, on the History Channel. The program focused on ancient technologies. The program focused on ancient technologies. The show's theme was that many inventions which are thought to be modern have ancient roots or in some cases may have been lost and then reinvented.

8. The Men Who Built America - Wikipedia

   en.wikipedia.org/wiki/The_Men_Who_Built_America

   The Men Who Built America (also known as The Innovators: The Men Who Built America in some international markets) is an eight-hour, four-part miniseries docudrama which was originally broadcast on the History Channel in autumn 2012, and on the History Channel UK in fall 2013.

9. 6SN7 - Wikipedia

   en.wikipedia.org/wiki/6SN7

   The 1937 6F8G [2] was also an octal-based double triode with essentially the same characteristics as the 6SN7 (or two 6J5's), but in a 'Coke Bottle' large (Outline ST-12) glass envelope with a different pin arrangement and utilising a top cap connection for the first triode's grid (making pin 1 available for a metal shield).