"A"
"B"
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
"T" to "Thermio",
"Thermis" to "Top",
"Tor" to "Transf",
"Trans" to "Tre",
"Triac" to "Tub"
"Tun" to "Tz"
TACHOMETER. A small ac or dc generator, sometimes referred to as a rate generator, that converts
its shaft speed into an electrical output. The tachometer is frequently used in servo-systems to sense the velocity of a load. An instrument that measures the rate at which a shaft is turning.
TANK CIRCUIT. A tuned circuit used to temporarily store energy. Also referred to as a parallel-resonant circuit.
TAPPED RESISTOR. A wire-wound, fixed resistor having one or more additional terminals along its
length, generally for voltage-divider applications. Potentiometer Manufacturers
TARGET. In radar, a specific object of radar search or detection.
TARGET RESOLUTION. The ability of a radar to distinguish between two or more targets that are close to each other.
TELECOMMUNICATIONS. The transmission, emission, or reception of signs, signals, writings, images, or sounds. This is done by visual, oral, wire, radio, or other means.
TEMPERATURE COEFFICIENT. The amount of change of resistance in a material per unit change in temperature.
TEMPERATURE INVERSION. The condition in which warm air is formed above a layer of cool air that
is near the earth’s surface.
TEMPEST. A term normally used to describe compromising emanations. These emanations are
unintentionally radiated signals that could disclose classified information.
TENTED VIA. A via with dry film solder mask which completely covers both the via pad and its plated-through hole.
TENSILE STRENGTH. The greatest stress a substance can withstand along its length without tearing apart.
TERMINAL. An electrical connection.
TERMINAL BOARD. Also called a terminal strip. An insulating base or slab equipped with terminals for
connecting wiring.
TERMINAL DIAGRAM. A diagram of a switch, relay, terminal board, or other component showing the connections to the equipment.
TERMINAL LUG. A device attached to a conductor to permit connection to a terminal.
TEST EQUIPMENT. A general term applied to devices used to test electrical and electronic circuits. [Manufacturers of Test Equipment]
TEST POINTS. Locations in equipment that are accessible to the technician’s test probes where operating voltages or signals can be monitored.
TETRODE TUBE. A four-electrode electron tube containing a plate, a cathode, a control grid, and a screen grid. [Vacuum Tube]
THERMAL INERTIA. The capacity of a soldering iron to generate and maintain a satisfactory soldering temperature while giving up heat to the material being soldered.
THERMAL-MAGNETIC TRIP ELEMENT. A single circuit breaker trip element that combines the action of a thermal and a magnetic trip element.
THERMAL RUNAWAY. A conduction that exists when heat causes more electron-hole pairs to be
generated, which, in turn, causes more heat and which may eventually cause diode destruction.
THERMAL TRIP ELEMENT. A circuit breaker trip element that uses the increased bending of a
bimetallic strip caused by increased current to open a circuit.
THERMIONIC EMISSION. Emission of electrons from a solid body as a result of elevated temperature.
Next set of "T" Terms
