Explore: Spark Gap Detectors

A spark-gap transmitter is an obsolete type of radio transmitter which generates radio waves by means of an electric spark. Spark-gap transmitters were

finding sensitive detectors. In addition to its main use in crystal radios, crystal detectors were also used as radio wave detectors in scientific experiments

are still used as leak detectors for high-vacuum systems. Originally, Tesla coils used fixed spark gaps or rotary spark gaps to provide intermittent

electromagnetic theory. Hertz used spark-excited dipole antennas to generate the waves and micrometer spark gaps attached to dipole and loop antennas

http://uv201.com/Radio_Pages/Pre-1921/crystal_detectors.htm Crystal Detectors http://www.sparkmuseum.com/DETECTOR.HTM Radio Detectors The Crystal Set Perfected

countermeasures. Different spark detectors are available depending on the place of use or the application; spark detectors for use with very high product

until about 1913, after which it was superseded by crystal detectors and vacuum tube detectors such as the Fleming valve and Audion (triode). It was considered

designs known as time projection, microstrip gas, and those types of detectors that use silicon. In 1968, Georges Charpak, while at the European Organization

to summon help during its famous 15 April 1912 sinking. The primitive spark gap radio transmitters used during the first three decades of radio (1886-1916)

Because they are threshold voltage detectors, coherers had difficulty discriminating between the impulsive signals of spark-gap transmitters, and other impulsive