current changer
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Frequency changer — A frequency changer or frequency converter is an electronic device that converts alternating current (AC) of one frequency to alternating current of another frequency. The device may also change the voltage, but if it does, that is incidental to… … Wikipedia
Alternating current — (green curve). The horizontal axis measures time; the vertical, current or voltage. In alternating current (AC, also ac) the movement of electric charge periodically reverses direction. In direct current (DC, also dc), the flow of electric charge … Wikipedia
Periodic current reversal — (PCR) is a current modulation technique that can be used in various electrochemical processes.In the most basic sense PCR simply means that the electrical current applied to the cell is reversed periodically but unlike pure AC the average (nett)… … Wikipedia
Voice changer — The term voice changer refers to a system of altering a person s voice to either make them sound like someone else or to disguise their voice.Voice changers change the tone or pitch, add distortion to the user s voice, or a combination of all of… … Wikipedia
money changer — Money Mon ey, n.; pl. {Moneys}. [OE. moneie, OF. moneie, F. monnaie, fr. L. moneta. See {Mint} place where coin is made, {Mind}, and cf. {Moidore}, {Monetary}.] 1. A piece of metal, as gold, silver, copper, etc., coined, or stamped, and issued by … The Collaborative International Dictionary of English
frequency changer — noun or frequency converter : a motor generator used to change the frequency of an alternating current circuit with or without a phase or voltage change … Useful english dictionary
Tap (transformer) — This article is about tappings in transformers. For other uses, see Tap. A transformer tap is a connection point along a transformer winding that allows a certain number of turns to be selected. This means, a transformer with a variable turns… … Wikipedia
Who Wants to Be a Millionaire (US game show) — Who Wants to Be a Millionaire Current title card for Who Wants to Be a Millionaire Genre Game show Created by David Briggs … Wikipedia
Pentagrid converter — For other types of frequency converters please, see Frequency converter. The pentagrid converter is a radio receiving valve (vacuum tube) with five grids used as the frequency mixer stage of a superheterodyne radio receiver. Grids of a 12SA7GT… … Wikipedia
Pit stop — For the technique to cause a car to spin around (and stop) quickly, see PIT maneuver. For other uses, see Pitstop. Indianapolis Motor Speedway Formula 1 pit lane and garages (right) adjacent to the oval racing lane … Wikipedia
Phonograph — Turntable redirects here. For other uses, see Turntable (disambiguation). Edison cylinder phonograph ca. 1899 … Wikipedia
