Saturday, 27 April 2024, 6:56 AM
Site: edulabs.org academy
Course: Activity Examples (Activity Examples)
Glossary: Electronics (Mike Jaroch)
K
KEEP-ALIVE CURRENTSee KEEP-ALIVE VOLTAGE [18]. |
KEEP-ALIVE VOLTAGEDC voltage applied to a tr gap electrode to produce a glow discharge that allows the tube to ionize faster when the transmitter fires [18]. |
KEY CLICKSInterference in the form of "clicks" or "thumps" caused by the sudden application or removal of power [12]. |
KEY-CLICK FILTERSFilters used in keying systems to prevent key-click interference [12]. |
KEYED-OSCILLATOR TRANSMITTERA transmitter in which one stage is used to produce the RF pulse [18]. |
KEYER(1) A device that changes dc pulses to mark and space modulation for teletypewriter transmissions [17]. (2) A synchronizer [18]. |
KEYING RELAYSRelays used in radio transmitters where the ordinary hand key cannot accommodate the plate current without excessive arcing [12]. |
KILOA prefix meaning one thousand [1]. |
KINETIC ENERGYEnergy that a body possesses by virtue of its motion [1]. |
KIRCHHOFF'S LAWS(1) The algebraic sum of the current flowing toward any point in a circuit and the current flowing away from it is zero. (2) The algebraic sum of the products of the current and resistance in each of the conductors in any closed path in a network is equal to the algebraic sum of the electromotive forces in the path [1]. |
KLYSTRON POWER AMPLIFIERA multicavity microwave electron tube that uses velocity modulation [18]. |
KNEE OF THE CURVEThe point of maximum curvature of a magnetization curve. (Shaped like the knee of a leg that is bent.) [8] |