Amplifier

Amplifier

Any electronic device designed to inrease the volume of sound.

Industry: Consumer electronics

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Amplifier

ground switch

Consumer electronics; Amplifier

Also referred to as a reverse or polarity switch, this feature allows the polarity of a current to be conveniently reversed, resulting in the elimination of hum.

half-wave rectifier

Consumer electronics; Amplifier

A rectifier that conducts on only the positive or only the negative half of the incoming sinusoidal signal. It produces a "pulsating" DC composed of single-polarity "humps" at the incoming AC ...

heat sink

Consumer electronics; Amplifier

A metal part with maximized surface areas designed to dissipate heat generated by electronic components.

heater

Consumer electronics; Amplifier

the heating element in an electron tube, also called the "filament".

hertz (Hz)

Consumer electronics; Amplifier

A unit equal to one cycle per second that measures the frequency of a periodic phenomenon such as an alternating current.

hiss

Consumer electronics; Amplifier

A kind of undesirable audio frequency noise. Often called white, pink, or thermal noise.

IC (integrated circuit)

Consumer electronics; Amplifier

Also known as a “chip,” an IC is a sophisticated, highly miniaturized solid-state circuit that contains the equivalent of many components such as transistors, resistors, capacitors, diodes, etc.