Amplifier

Amplifier

Any electronic device designed to inrease the volume of sound.

Industry: Consumer electronics

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Amplifier

Local negative feedback

Consumer electronics; Amplifier

Feedback that is applied over one stage only, as opposed to global negative feedback, which is applied over several stages of amplification. An example of local negative feedback is a cathode ...

A phase inverter topology that has a single resistor connected as a pseudo-current source from the junction of two tube cathodes, with the outputs taken off the individual tube plates, one in phase ...

Power rating

Consumer electronics; Amplifier

The maximum power at which an amplifier can operate over a specified period.

Power transformer

Consumer electronics; Amplifier

A transformer used to convert the incoming line (or mains) voltage to a higher or lower value for use in the guitar amplifier.

Preamp

Consumer electronics; Amplifier

A stage in an amplifier that raises the signal of a low-level source (such as a guitar) so that it may be further processed.

Preamp out

Consumer electronics; Amplifier

An output that facilitates taking the preamp’s signal and sending it to other power amps, PA mixers, or recording gear.

Presence

Consumer electronics; Amplifier

A control on a guitar amplifier that boosts the upper frequencies above the normal treble control range for added high-end. This control is usually a shelving type of equalizer, and is normally ...