## Electronics (Mike Jaroch)

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### B

#### BEAM

See LOBE [18].
 Keyword(s): BEAM

Semiconductor chip with electrodes (leads) extended beyond the wafer [14].

#### BEAM-POWER TUBE

An electron tube in which the grids are aligned with the control grid. Special
beam-forming plates are used to concentrate the electron stream into a beam. Because of this action, the beam-power tube has high power-handling capabilities [6].

 Keyword(s): BEAM-POWER TUBE

#### BEARING

An angular measurement of the direction of an object from a reference direction, such as true north [11].

 Keyword(s): BEARING

#### BEARING RESOLUTION

Ability of a radar to distinguish between targets that are close together in
bearing [18].

 Keyword(s): BEARING RESOLUTION

#### BEAT FREQUENCIES

Difference and sum frequencies, which result from the combination of two
separate frequencies [18].

 Keyword(s): BEAT FREQUENCIES

#### BEAT FREQUENCY

The difference between the oscillator frequency and the unknown audio frequency
[16].

 Keyword(s): BEAT FREQUENCY

#### BEAT-FREQUENCY OSCILLATOR

An additional oscillator used in a receiver when it is receiving a
cw signal. It provides an audible tone [17].

 Keyword(s): BEAT-FREQUENCY OSCILLATOR

#### BEL

The unit that expresses the logarithmic ratio between the input and output of any given component, circuit, or system [16].

 Keyword(s): BEL

#### BETA

The ratio of a change in collector current to a corresponding change in base current when the collector voltage is constant in a common-emitter circuit [7].

 Keyword(s): BETA

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