A Braun tube ( a CRT ) was used for displaying the range.
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A Braun tube was used for displaying the range.
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The earliest version of the CRT was known as the " Braun tube ", invented by the German physicist Ferdinand Braun in 1897.
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For displaying the range, it had a Braun tube ( a CRT ), improved in the late 1920s by Manfred von Ardenne.
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The system performance was excellent; the range was read off the Braun tube with a tolerance of 50 meters ( less than 1 percent variance ), and the lobe switching allowed a directional accuracy of 0.1 degree.
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In 1911, Boris Rosing and his student Vladimir Zworykin created a system that used a mechanical mirror-drum scanner to transmit, in Zworykin's words, " very crude images " over wires to the " Braun tube " ( cathode ray tube or " CRT " ) in the receiver.
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Initial edits were complaints about English Wikipedia suggesting this is a meatpuppet of Europefan, but umbrage against England ( [ https : / / en . wikipedia . org / w / index . php ? title = Cathode _ ray _ tube & diff = prev & oldid = 587569362 " " Braun tube ", not only English, both " ) tells me it's the same dude, new sock . talk ) 22 : 45, 24 December 2013 ( UTC)
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The first use of " raster " specifically for a television scanning pattern is often credited to Baron Manfred von Ardenne who wrote in 1933 : " In einem Vortrag im Januar 1930 konnte durch Vorf�hrungen nachgewiesen werden, da?die Braunsche R�hre hinsichtlich Punktsch�rfe und Punkthelligkeit zur Herstellung eines pr�zisen, lichtstarken Rasters laboratoriumsm��ig durchgebildet war " ( In a lecture in January 1930 it was proven by demonstrations that the Braun tube was prototyped in the laboratory with point sharpness and point brightness for the production of a precise, bright raster ) . " Raster " was adopted into English television literature at least by 1936, in the title of an article in " Electrician ".
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