Amplifier

Amplifier

Any electronic device designed to inrease the volume of sound.

Industry: Consumer electronics

Add a new term

Contributors in Amplifier

Become a Contributors

Amplifier

reflected impedance

Consumer electronics; Amplifier

The impedance seen "looking into" the primary of a transformer when it the secondary is loaded with a specific impedance. The impedance on the secondary side is transformed by the square of the ...

resistive load

Consumer electronics; Amplifier

A load that contains no inductance or capacitance, just pure resistance An example of a resistive load is a dummy test load consisting of a single resistance equal to the output impedance of the ...

resistor

Consumer electronics; Amplifier

A circuit element that presents a resistance to the flow of electric current. A current flowing through a resistance will create a voltage drop across that resistance in accordance with Ohm's law.

RMS (root mean square)

Consumer electronics; Amplifier

The true measure of an amp’s ability to perform, RMS is based on continuous power at a given number of cycles per second over a period of time not less than 30 seconds. See Peak.

A phase inverter configuration using two cathode-coupled tubes, with the first tube acting as a common cathode stage providing an out-of-phase signal at its plate, while the second tube operates as a ...

screen grid

Consumer electronics; Amplifier

A second grid element interposed between the control grid and the plate, to act as an electrostatic shield between them. This shielding action greatly reduces the input capacitance of the tube, ...

secondary emission

Consumer electronics; Amplifier

electrons in a vacuum tube may be moving at a sufficient speed to dislodge additional electrons when they strike the plate of the tube. These electrons emitted from the plate can reduce the current ...