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  • | location = [[Image:Flag of the United States.svg|20px]] [[Cedar Rapids, Iowa]], [[United States|USA]] ...ment to establish a communications link with the [[South Pole]] expedition of [[Rear admiral|Rear Admiral]] [[Richard Evelyn Byrd|Richard Byrd]] in 1933.
    22 KB (3,330 words) - 14:49, 10 December 2011
  • ...lectronics''' represent [[Signal (electronics)|signals]] by discrete bands of [[analog electronics|analog]] [[Electrical potential|levels]], rather than ...supply voltage, corresponding to the "false" ("0") and "true" ("1") values of the [[Boolean domain]] respectively.
    33 KB (4,939 words) - 14:49, 10 December 2011
  • [[File:Modern crystal radio set.jpg|right|thumb|upright|A modern reproduction of an antique crystal set. It is tuned to different stations by moving the sli ...t component, known as a [[crystal detector]], originally made with a piece of crystalline mineral such as [[galena]].<ref name="Carr">{{Cite book
    73 KB (10,437 words) - 14:50, 10 December 2011
  • ...table in their frequency output.<ref name=nahin1>Nahin, Paul ''The Science of Radio'' (Chapter 7), p. 91, figure 7.10. ISBN 0-387-95150-4</ref><ref name ...sure the received signal strength, which necessitates linear amplification of the actual [[carrier wave]].
    31 KB (4,651 words) - 14:50, 10 December 2011
  • ...Law - 2011.svg|thumb|350px|Plot of CPU [[transistor count]]s against dates of introduction. Note the [[Semi-log plot|logarithmic vertical scale]]; the li ...as much (adjusting for inflation), and has 1/100th the [[clock frequency]] of the iPhone.]]
    53 KB (7,743 words) - 14:51, 10 December 2011
  • [[Image:Wein Bridge Oscillator.png|right|thumb|300px|In this version of the oscillator, Rb is a small incandescent lamp. Usually R1 = R2 = R and C1 ...oscillator]] that generates [[sine wave]]s. It can generate a large range of [[frequencies]]. The oscillator is based on a [[bridge circuit]] originally
    17 KB (2,498 words) - 14:52, 10 December 2011
  • ...n of the [[Oscilloscope]] article, discussing the various types and models of oscilloscopes in greater detail. The earliest and simplest type of oscilloscope consisted of a [[cathode ray tube]], a vertical [[amplifier]], a timebase, a horizontal
    39 KB (6,076 words) - 14:52, 10 December 2011
  • <!-- This article is a part of [[Wikipedia:WikiProject Aircraft]]. Please see [[Wikipedia:WikiProject Airc ...craft manufacturer [[Avro]]. Large numbers of the type served in a variety of roles for the [[Royal Air Force]] (RAF), [[Fleet Air Arm]] (FAA), [[Royal C
    50 KB (7,231 words) - 21:55, 17 February 2018

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