Semi Joseph Begun, Date of Birth, Place of Birth, Date of Death

    

Semi Joseph Begun

American businessman

Date of Birth: 01-Jan-1905

Place of Birth: Gdańsk, Pomeranian Voivodeship, Poland

Date of Death: 01-Jan-1995

Profession: electrical engineer

Nationality: United States, Germany

Zodiac Sign: Capricorn


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About Semi Joseph Begun

  • Semi Joseph Begun (December 2, 1905 in Germany – January 5, 1995), usually referred to as S.
  • Joseph Begun, was a German-American engineer and inventor. In 1943 Begun was Vice President of Research for Brush Development Company, Cleveland, Ohio.
  • Brush's main business was the production of piezoelectric phonograph pickups, the least expensive and most widely used pickup of the late 1930s.
  • They also, however, produced in cooperation with Western Electric the magnetic tape sound recorders.
  • These used hardened steel tape as the recording medium. Another product they manufactured were known as "wire recorders." These used stainless steel wire, with a composition similar to (or perhaps identical with) high carbon high chromium cutlery steel, which is ferromagnetic, as the recording medium.
  • The recording head was a split ring, with the wire running in a groove in the head, quite similar to the heads used today.
  • High frequency AC bias was used to linearize the recording.
  • The ferritic stainless steel was quite strong.
  • Diamond dies were required to draw it into wire.
  • Dr.
  • Begun obtained a contract from the National Defense Research Council to perform research and development on a substitute for the stainless steel wire.
  • The work was justified by the military use of the recorders and the shortage of facilities for producing the diamond dies. Dr.
  • Begun had two concepts in mind for a different recording medium.
  • One was to find a means for coating a ductile nonmagnetic metal wire with a metallic magnetic coating.
  • The other was to coat a non-metallic tape with a magnetic coating.
  • He placed the work on wire in the Research Department of Brush Development Company, and contracted with Battelle Memorial Institute, Columbus, Ohio, for work on the development of a coated non-metallic tape.

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