| 单词 | video amplifier |
| 释义 | > as lemmasvideo amplifier video amplifier n. a device designed to amplify the wide range of frequencies present in video signals and deliver such signals to a television or other display device. ΚΠ 1937 Electronics Aug. 22/1 A video amplifier is one that is responsive to picture signals, and therefore, is an extremely good audio as well as a very wide band radio frequency amplifier. 1975 D. G. Fink Electronics Engineers' Handbk. xx. 55 Finally the video amplifier raises the signal to from 50 to 100 V to drive the picture tube. 2011 Deep-sea Res. II: Topical Stud. Oceanogr. 58 1312/2 The camcorder was controlled from the surface... Signal loss in the 660m long umbilical was compensated by boosting the signal with a video amplifier. < as lemmas |
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