## Electronics (Mike Jaroch)

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### A

#### AMBIENT TEMPERATURE

The surrounding temperature such as the temperature of air surrounding a
conductor in a compartment or within a piece of equipment [4].

 Keyword(s): AMBIENT TEMPERATURE

#### AMBIGUOUS RETURNS

Echoes that exceed the prt of a radar and appear at incorrect ranges [18].
 Keyword(s): AMBIGUOUS RETURNS

#### AMMETER

An instrument for measuring the amount of electron flow (in amperes) [1] [3] [6].
 Keyword(s): AMMETER

#### AMPERE

The basic unit of electrical current [1].
 Keyword(s): AMPERE

#### AMPERE-TURN

The magnetomotive force developed by 1 ampere of current flowing through a coil of one turn [8].

 Keyword(s): AMPERE-TURN

#### AMPERITE (BALLAST) TUBE

A current-controlling resistance device designed to maintain
substantially constant current over a specified range of variation in applied voltage or resistance of a
series circuit [6].

 Keyword(s): AMPERITE (BALLAST) TUBE

#### AMPLIDYNE

A special dc generator in which a small dc voltage applied to field windings controls a large output voltage from the generator. In effect, an amplidyne is a rotary amplifier that often times produces gain of approximately 10,000 [5].

 Keyword(s): AMPLIDYNE

#### AMPLIFICATION

(1) The process of enlarging a signal in amplitude (as of voltage or current) [8]. (2) The ratio of output magnitude to input magnitude in a device that is intended to produce an output that is an enlarged reproduction of its input [6] [7].

 Keyword(s): AMPLIFICATION

#### AMPLIFICATION FACTOR

The voltage gain of an amplifier with no load on the output [6] [7].
 Keyword(s): AMPLIFICATION FACTOR

#### AMPLIFIER

AMPLIFIER—The device that provides amplification (the increase in current, voltage, or power of a signal) without appreciably altering the original signal [7] [8].

 Keyword(s): AMPLIFIER

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