Amplifier diode

An electrical component having the ability to pass electric current readily in one direction but resisting current flow in the other. When four diodes are connected in a certain ...

diode

Engineering; Electronic engineering

A two-element device containing an anode and a cathode, and providing unidirectional conduction. The many types are used in such devices as rectifiers, detectors, peak clippers, ...

diode

Physics; Electromagnetism

A device that allows an electric current to flow in one direction only. They can be used to convert alternating current into direct current.

diode

Consumer services; Hair salons

A semiconductive material which mainly lets energy travel one direction and not the other. Light-Emitting Diodes (LEDs) are used for the numeric displays on microwaves and VCRS as ...

Alexanderson

Engineering; Electronic engineering

American inventor who developed the first practical television system in 1930. He later improved upon his invention when he developed color television in 1955.

decibel (dB)

Engineering; Electronic engineering

A practical unit of relative gain. In terms of power, the relative gain in decibels is equal to: Gain (dB) = 10 log 10 ( P out /P in ), where P out is the output power and P ...

audio-frequency meter

Engineering; Electronic engineering

An instrument to measure frequencies in the audio-frequency spectrum (approximately 20 Hz to 20 kHz). Three types are commonly used: * Analog - Gives direct indications of ...

Boltzmann's principle

Engineering; Electronic engineering

A description of the statistical distribution of large numbers of tiny particles under the influence of a force, such as an electric or magnetic field. When the system is in ...