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343-line Television System
343-line is the number of scan lines in some early electronic monochrome analog television systems. Systems with this number of lines were used with 30 interlaced frames per second the United States by from 1935 to 1938, and with 25 interlaced frames per second in the Soviet Union from 1937 onwards. A similar system was under development in Poland in 1939. TV cameras where based on the iconoscope, the primary camera tube used in American broadcasting from 1936 until 1946, when it was replaced by the image orthicon tube. Earlier cameras used special spotlights or spinning disks to capture light from a single very brightly lit spot, and were not suitable for broadcasting of outdoor live events. This early standard was soon replaced by 441-line systems. United States 343-line broadcasts where introduced by RCA and NBC on November 6, 1936. Tests started the previous year from New York City (W2XF on the Empire State Building), where NBC converted a radio studio in the Rockefeller ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grace Brandt Eddie Albert Grace And Eddie The Honeymooners Show 1937
Grace may refer to: Places United States * Grace, Idaho, a city * Grace (CTA station), Chicago Transit Authority's Howard Line, Illinois * Little Goose Creek (Kentucky), location of Grace post office * Grace, Carroll County, Missouri, an unincorporated community * Grace, Laclede County, Missouri, an unincorporated community * Grace, Mississippi, an unincorporated community * Grace, Montana, an unincorporated community * Grace, Hampshire County, West Virginia * Grace, Roane County, West Virginia Elsewhere * Grace (lunar crater), on the Moon * Grace, a crater on Venus People with the name * Grace (given name), a feminine name, including a list of people and fictional characters * Grace (surname), a surname, including a list of people with the name Religion Theory and practice * Grace (prayer), a prayer of thanksgiving said before or after a meal * Divine grace, a theological term present in many religions * Grace in Christianity, the benevolence shown by God towar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
