Alexanderson alternator
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 Alexanderson Alternator in the Grimeton VLF transmitter. |
An Alexanderson alternator is a rotating machine invented by Ernst Alexanderson in 1904 for the generation of high frequency alternating current up to 100 kHz, for use as a radio transmitter. It was one of the first devices capable of generating the continuous radio waves needed for transmission of amplitude modulation (sound) by radio, and was used for a short period through the 1920s in the first AM radio transmitters, until it was replaced by vacuum tube transmitters. It is on the list of IEEE Milestones as a key achievement in electrical engineering.
- See also: Wikipedia
- Related: Alexanderson Day, Tonewheel, Resolver (electrical)
| Description of the 200 kW alternator at New Brunsw... Description of the 200 kW alternator at New Brunswick earlyradiohistory.us/1920alt.htm - Web |
| Alexanderson Alternators at Haiku Valley Oahu Alexanderson Alternators at Haiku Valley Oahu davewjessup.smugmug.com - Web |
| Alexanderson Alternators at Marion, Massachusetts Alexanderson Alternators at Marion, Massachusetts www.haikuvalley.com/.../10069404_pcNsc#819029011_DkKue - Web |
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