Workshops began making specialized versions of Crookes tubes for generating X-rays and these first-generation cold cathode or Crookes X-ray tubes were used until about 1920.
42.
The early designs of an inverter circuit for a cold cathode fluorescent lamp did not utilize the resonance method of a secondary circuit at all.
43.
The increased power dissipation at tube ends also usually means cold cathode tubes have to be run at a lower loading than their thermionic emission equivalents.
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How does enough energy get into my room that a cold cathode is giving light .-- talk ) 18 : 58, 2 April 2010 ( UTC)
45.
He is best known for his work associated with cold cathode glow discharge devices, and has published over a dozen papers and a book dealing with the subject.
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Another design for the inverter circuit of a cold cathode fluorescent lamp is shown in the figure of the CCFL Inverter circuit of the past generation of technology.
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In 1956, Weston took leadership of a small group of physicists, investigating cold cathode tubes, which gained a reputation as one of the foremost research units in the field.
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Different technologies were used for the unit, the Type 1 using cold cathode devices and the Type 4 magnetic drum, suitable for use in Director areas ( e . g.
49.
However, there are also tubes that operate in cold cathode mode, whereby electrons are liberated into the tube only by the large potential difference ( voltage ) between the electrodes.
50.
A duoplasmatron is a type of glow discharge ion source that consists of a hot cathode or cold cathode that produces a plasma that is used to ionize a gas.