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ABC knowledge classroom: Power amplifier is basic parameter is analytic
From;    Author:Stand originally

Second kind result put be signal of bowstring of point out mistakes so that they can be corrected to losing two to output class half weeks by push-pull respectively two " arm " a kind of amplifier that puts big output by turns, each " arm " half cycle that electric time is signal. Second kind the advantage of amplifier is efficiency tall, defect is meeting generation is handed in more lack fidelity.

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