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- Q92416 subject Q10018825.
- Q92416 subject Q6647036.
- Q92416 subject Q6938845.
- Q92416 subject Q8205191.
- Q92416 subject Q8330531.
- Q92416 abstract "Semi Joseph Begun (born in Germany in 1905, died 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.".
- Q92416 birthDate "1905-12-02".
- Q92416 deathDate "1995-01-05".
- Q92416 knownFor Q213777.
- Q92416 nationality Q183.
- Q92416 nationality Q30.
- Q92416 wikiPageExternalLink index.pl?node_id=1214410.
- Q92416 wikiPageExternalLink ?IID=10.
- Q92416 wikiPageExternalLink Joseph_Begun.htm.
- Q92416 wikiPageWikiLink Q10018825.
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- Q92416 wikiPageWikiLink Q6647036.
- Q92416 wikiPageWikiLink Q6938845.
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- Q92416 wikiPageWikiLink Q8205191.
- Q92416 wikiPageWikiLink Q8330531.
- Q92416 birthDate "1905-12-02".
- Q92416 deathDate "1995-01-05".
- Q92416 knownFor Q213777.
- Q92416 name "Hess Joseph begun".
- Q92416 nationality Q183.
- Q92416 nationality Q30.
- Q92416 type Person.
- Q92416 type Agent.
- Q92416 type Person.
- Q92416 type Scientist.
- Q92416 type Agent.
- Q92416 type NaturalPerson.
- Q92416 type Thing.
- Q92416 type Q215627.
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- Q92416 type Person.
- Q92416 comment "Semi Joseph Begun (born in Germany in 1905, died 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.".
- Q92416 label "Semi Joseph Begun".
- Q92416 name "Hess Joseph begun".