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Electronics Glossery: F

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

The control that adjusts the relative volume levels of front and rear speakers in a four speaker system or the front and rear pre-amplifier outputs.

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Source:http://www.the12volt.com/glossary/glossary.asp

Time it takes the falling edge of a pulse to go from 90% of peak voltage to 10% of peak voltage.

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Source:http://www.twysted-pair.com/dictionary.htm

The basic unit of capacitance. A capacitor has a value of one farad when it can store one coulomb of charge with one volt across it.

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Source:http://www.the12volt.com/glossary/glossary.asp

A portion of the output signal of an amplifier which is connected back to the input of the same amplifier.

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Source:http://www.twysted-pair.com/dictionary.htm

An amplifier with an external signal path from its output back to its input.

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Source:http://www.twysted-pair.com/dictionary.htm

A powdered, compressed and sintered magnetic material having high resistivity. The high resistance makes eddy current losses low at high frequencies.

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Source:http://www.twysted-pair.com/dictionary.htm

Ferrite composition in the form of a bead. Running a wire through the bead increases the inductance of the wire.

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Source:http://www.twysted-pair.com/dictionary.htm

An inductor wound on a ferrite core.

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Source:http://www.twysted-pair.com/dictionary.htm

Compound composed of iron oxide, a metallic oxide and ceramic. The metal oxides include zinc, nickel, cobalt or iron.

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Source:http://www.twysted-pair.com/dictionary.htm

Composed of and or containing iron. A ferrous metal exhibits magnetic characteristics as opposed to non-ferrous material.

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Laser's light output carries information that is conveyed between two points by thin glass optical fibers.

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Source:http://www.twysted-pair.com/dictionary.htm

The term used to describe the accuracy of recording, reproduction, or general quality of audio processing.

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Source:http://www.the12volt.com/glossary/glossary.asp

A voltage controlled transistor in which the source to drain conduction is controlled by gate to source voltage.

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Source:http://www.twysted-pair.com/dictionary.htm

Thin thread of carbon or tungsten which produces heat or light with the passage of current.

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Source:http://www.twysted-pair.com/dictionary.htm

An active or passive circuit or device designed to block a certain frequency or range of frequencies.

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Source:http://www.the12volt.com/glossary/glossary.asp

Term for a circuit or audio system which will pass audio signals that will vary by no more than ± 1 dB usually between 20 Hz and 20 kHz unless otherwise specified.

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Source:http://www.the12volt.com/glossary/glossary.asp

The set of curves showing the human's ear's frequency sensitivity versus loudness, created by researchers Fletcher and Munson. The curves show the ear to be most sensitive to sounds between 3 kHz and 4 kHz (ear canal resonances).

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Source:http://www.the12volt.com/glossary/glossary.asp

A bistable multivibrator. A circuit which has two output states and is switched from one to the other by means of an external signal (trigger).

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Source:http://www.twysted-pair.com/dictionary.htm

Non-common grounding point.

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Source:http://www.the12volt.com/glossary/glossary.asp

Conmmon connection in a circuit that provides a return path for current but is not connected to an earth ground.

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Source:http://www.twysted-pair.com/dictionary.htm

Flow or wave soldering technique in large scale electronic assembly to solder all the connections on a printed circuit board by moving the board over a wave of molten solder.

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Source:http://www.twysted-pair.com/dictionary.htm

1) In magnetism, the magnetic field consisting of lines of force.
2) Material used to remove oxide films from the surface of metals in preparation for soldering.

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Source:http://www.twysted-pair.com/dictionary.htm

The concentration of magnetic lines of force. Determines strength of the magnetic field.

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Source:http://www.twysted-pair.com/dictionary.htm

Sustaining effect of oscillation in an LC circuit.

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The FM tuner demodulator's ability to separate left and right channel signals of FM stereo broadcast. Measured in decibels, the higher the number the better.

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Source:http://www.the12volt.com/glossary/glossary.asp

The lens in the optical block of a compact disc player which focuses the laser light onto the surface of the disc.

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Source:http://www.the12volt.com/glossary/glossary.asp

The circuit which keeps the laser light correctly focused on the pit area of the disc.

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Source:http://www.the12volt.com/glossary/glossary.asp

A PN junction bias which allows current to flow through the junction. Forward bias decreases the resistance of the depletion layer.

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Source:http://www.twysted-pair.com/dictionary.htm

Electrons that are not in any orbit around a nucleus.

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A multivibrator that produces a continuous output waveform without any signal input. A square wave generator used to produce a clock signal.

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Source:http://www.twysted-pair.com/dictionary.htm

Rate of recurrence of a periodic wave. Measured in Hertz (cycles per second).
The number of wavelengths which pass a specific point in a specific time period, measured in Hertz (Hz). Cycles per second.

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Source:http://www.twysted-pair.com/dictionary.htm
Source:http://www.the12volt.com/glossary/glossary.asp

See crossover network.

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Meter used to measure frequency of periodic waves.

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The encoding of a carrier wave by variation of it's frequency in accordance with an input signal.

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Source:http://www.the12volt.com/glossary/glossary.asp

A harmonic conversion circuit in which the frequency of the output signal is an exact multiple of the input frequency.

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Source:http://www.twysted-pair.com/dictionary.htm

General: Indication of how well a circuit responds to different frequencies applied to it.
Audio: The lowest and highest parts of the frequency spectrum that can be reproduced by an audio component within specific limits and tolerances.

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Source:http://www.the12volt.com/glossary/glossary.asp
Source:http://www.twysted-pair.com/dictionary.htm

A graph of amplitude over frequency indicating a circuit response to different frequencies.

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Transmission of two or more signals over a common path by using a different frequency band for each signal.

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A method of representing a waveform by plotting its amplitude against frequency.

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Deflection of a meter's pointer to the farthest position on the scale.

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Rectifier that makes use of the full AC wave in both the positive and negative half cycles.

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Source:http://www.twysted-pair.com/dictionary.htm

Signal generator that can produce sine, square, triangle and sawtooth output waveforms.

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Lowest frequency in a complex waveform.

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A protective device in the current path that melts or breaks when current exceeds a predetermined maximum value.

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Source:http://www.twysted-pair.com/dictionary.htm

Created: __/__/04
Updated: __/__/__
Checked: __/__/__