单词 | video amplifier |
释义 | video amplifier [`vid·ē·ō `am·plǝ´fī·ǝr] ELECTRONICS A low-pass amplifier having a band width on the order of 2-10 megahertz, used in television and radar transmission and reception; it is a modification of an RC-coupled amplifier, such that the high-frequency half-power limit is determined essentially by the load resistance, the internal transistor capacitances, and the shunt capacitance in the circuit. |
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