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Oxide-coated cathodes

Overcharge Behavior of Metal Oxide-Coated Cathode Materials... [Pg.207]

Oxide-coated cathodes that are indirectly heated are more efficient ( 1 eV) than thoriated tungsten filaments, but they cannot sustain the high-voltage high-current operating conditions associated with power grid tubes. When the maximum output power required is below a few hundred watts, they are the device of choice and find application in low-power high-frequency transmitters. They are also widely used by audiophiles who feel that vacuum-tube power amplifiers produce a quality of sound output that is superior to that produced by semiconductor devices. [Pg.355]

Detector with thermo-ionic emission Change of emission rate from an oxide-coated cathode... [Pg.7]

Wooton and Brown [134] used this low pressure method to measure the surface area of oxide coated cathodes (c. 100 cm2) by adsorption... [Pg.70]

See other pages where Oxide-coated cathodes is mentioned: [Pg.483]    [Pg.15]    [Pg.222]    [Pg.395]    [Pg.395]    [Pg.150]    [Pg.355]    [Pg.495]    [Pg.350]    [Pg.486]   
See also in sourсe #XX -- [ Pg.84 , Pg.96 ]



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Cathode coatings

Cathode-oxidizing

Coated cathodes

Oxide coating

Oxidic coatings

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