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T

TORQUE VECTOR

In a gyro, a vector representing the rotary motion applied to change the direction of the rotor axis. The torque vector represents the axis about which the applied force is felt [15].


TOTAL RESISTANCE

(RT) The equivalent resistance of an entire circuit. For a series circuit: RT = R1 + R2 + R3 ...Rn. For parallel circuits:


TOXIC VAPORS

Vapors emitted by a substance that can do bodily harm [4].

TR RECOVERY TIME

Time required for a fired tr or atr tube to deionize to a normal level of
conductance [18].


TRACK

Operational phase of a fire-control or track radar during which the radar beam is kept on the target [18].


TRACK RADAR

Radar that provides continuous range, bearing, and elevation data by keeping the RF beam on the target [18].


TRANSCONDUCTANCE

Transconductance is a ratio of the change in plate current to a change in grid
voltage with the plate voltage held constant. Transconductance (gm) is usually expressed in micromhos or millimhos.


TRANSFORMER

A device composed of two or more coils, linked by magnetic lines of force, used to transfer energy from one circuit to another.

STEP-DOWN—A transformer so constructed that the number of turns in the
secondary winding is less than the number of turns in the primary winding. This construction will
provide less voltage in the secondary circuit than in the primary circuit [2].

STEP-UP—A transformer so constructed that the number of turns in the secondary winding is more than the number of turns in the primary winding. This construction will provide more voltage in the secondary circuit than in the primary circuit [2].


TRANSFORMER EFFICIENCY

The ratio of output power to input power, generally expressed as a
percentage.


TRANSISTOR

A semiconductor device with three or more elements [7].


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