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- Beat_receptor abstract "The beat receiver or beat receptor is a direct-conversion heterodyne detector invented by Nikola Tesla prior to 1896 to receive continuous un-modulated radio waves (CW) and produce an audible note through the mixing of locally generated radio-frequency currents with radio-frequency currents from an antenna or receiving structure. This is achieved by the application of a locally generated radio-frequency magnetic field to radio-frequency currents flowing in a conductor.The beat receiver consists of an LC circuit made up of a capacitor plus a steel wire or band that is stretched through the field of a powerful electro-magnet. The capacitor is of comparatively large value because the conductor is short. The tuned circuit is excited by radio-frequency alternating current inductively coupled from the receiver's antenna.The electromagnet is excited by stable radio-frequency alternating current produced by a local isochronous electro-mechanical oscillator known as a beat frequency oscillator or BFO. It consists of two chambers in the center of which is placed a vibrating membrane. This is inclosed in a magnetic field, consisting of a powerful coil encircling the device, and which is excited by a direct current. The membrane is caused to vibrate by passing interrupted, compressed air through the two chambers. In the process of vibration, an electromagnetic force is produced in a coil secured to the vibrating disc.The frequency of the locally produced oscillation is set close to the frequency of the received signal. The steel wire, brought under tension and mechanically tuned, is caused to vibrate at the resulting audible beat frequency of the local and received oscillations.\"The apparatus is timed by adjusting the periodicity of the band until the received wave is made audible.\"The pioneering work of Tesla and Fessenden lead to the development of basic intermediate frequency circuitry.".
- Beat_receptor thumbnail Tesla_beat_receptor.gif?width=300.
- Beat_receptor wikiPageID "38566340".
- Beat_receptor wikiPageLength "3751".
- Beat_receptor wikiPageOutDegree "17".
- Beat_receptor wikiPageRevisionID "686733258".
- Beat_receptor wikiPageWikiLink Beat_(acoustics).
- Beat_receptor wikiPageWikiLink Category:Inventions_by_Nikola_Tesla.
- Beat_receptor wikiPageWikiLink Category:Signal_processing.
- Beat_receptor wikiPageWikiLink Direct-conversion_receiver.
- Beat_receptor wikiPageWikiLink Heterodyne.
- Beat_receptor wikiPageWikiLink Heterodyne_detection.
- Beat_receptor wikiPageWikiLink Homodyne_detection.
- Beat_receptor wikiPageWikiLink Intermediate_frequency.
- Beat_receptor wikiPageWikiLink Intermodulation.
- Beat_receptor wikiPageWikiLink Isochronous.
- Beat_receptor wikiPageWikiLink LC_circuit.
- Beat_receptor wikiPageWikiLink Local_oscillator.
- Beat_receptor wikiPageWikiLink Nikola_Tesla.
- Beat_receptor wikiPageWikiLink Reginald_Fessenden.
- Beat_receptor wikiPageWikiLink Superheterodyne_receiver.
- Beat_receptor wikiPageWikiLink Transverter.
- Beat_receptor wikiPageWikiLink File:Tesla_beat_receptor.gif.
- Beat_receptor wikiPageWikiLinkText "Beat receptor".
- Beat_receptor wikiPageWikiLinkText "beat receiver".
- Beat_receptor wikiPageUsesTemplate Template:Reflist.
- Beat_receptor subject Category:Inventions_by_Nikola_Tesla.
- Beat_receptor subject Category:Signal_processing.
- Beat_receptor hypernym Detector.
- Beat_receptor type Spacecraft.
- Beat_receptor type Field.
- Beat_receptor comment "The beat receiver or beat receptor is a direct-conversion heterodyne detector invented by Nikola Tesla prior to 1896 to receive continuous un-modulated radio waves (CW) and produce an audible note through the mixing of locally generated radio-frequency currents with radio-frequency currents from an antenna or receiving structure.".
- Beat_receptor label "Beat receptor".
- Beat_receptor sameAs Q17004760.
- Beat_receptor sameAs m.0r4vb8d.
- Beat_receptor sameAs Q17004760.
- Beat_receptor wasDerivedFrom Beat_receptor?oldid=686733258.
- Beat_receptor depiction Tesla_beat_receptor.gif.
- Beat_receptor isPrimaryTopicOf Beat_receptor.