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- Q582060 subject Q10210014.
- Q582060 subject Q449969.
- Q582060 subject Q6441136.
- Q582060 subject Q7487072.
- Q582060 subject Q8124256.
- Q582060 subject Q8411252.
- Q582060 abstract "The arc converter, sometimes called the arc transmitter, or Poulsen arc after Danish engineer Valdemar Poulsen who invented it in 1903, was a variety of spark transmitter used in early wireless telegraphy. The arc converter used an electric arc to convert direct current electricity into radio frequency alternating current. It was used as a radio transmitter from 1903 until the 1920s when it was replaced by vacuum tube transmitters. One of the first transmitters that could generate continuous sinusoidal waves, it was one of the first technologies used to transmit sound (amplitude modulation) by radio. It is on the list of IEEE Milestones as a historic achievement in electrical engineering.".
- Q582060 thumbnail Poulsen_arc_1MW_transmitter.jpg?width=300.
- Q582060 wikiPageExternalLink electricjournal18elecuoft.
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- Q582060 wikiPageExternalLink poulsenarc.htm,.
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- Q582060 comment "The arc converter, sometimes called the arc transmitter, or Poulsen arc after Danish engineer Valdemar Poulsen who invented it in 1903, was a variety of spark transmitter used in early wireless telegraphy. The arc converter used an electric arc to convert direct current electricity into radio frequency alternating current. It was used as a radio transmitter from 1903 until the 1920s when it was replaced by vacuum tube transmitters.".
- Q582060 label "Arc converter".
- Q582060 depiction Poulsen_arc_1MW_transmitter.jpg.