单词 | in push-pull |
释义 | > as lemmasin push-pull A push-pull arrangement or state, esp. (Electronics) in an amplifier (frequently in in push-pull); a state of tension.In quot. 1925 referring to an arrangement of oppositely mounted propellers. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > processes > [noun] > input or output > specific arrangement or state push-pull1925 1925 Science 20 Mar. p xiii/2 (advt.) ‘Hy-speed’ mixers with ‘push-pull’. 1929 Exper. Wireless June 307/1 A pair of valves, (or banks of valves), working in opposite phase, commonly called ‘Push-pull’. 1948 A. L. Albert Radio Fund. ix. 360 Radio-frequency power amplifiers often are operated in push-pull. 1962 Listener 7 June 1006/2 One could not help speculating on the strange symbiosis or state of push-pull—call it what you like—which exists between him and his age. 1975 G. J. King Audio Handbk. iv. 83 The output stages of hi-fi amplifiers employ two transistors in push-pull. 1989 New Yorker 18 Sept. 102/3 The rest of ‘Sea of Love’ is a series of variations on the push-pull of this first encounter. 1990 D. St. J. Thomas BR in Eighties (BNC) 34 A spare Class 73 locomotive converted to push-pull. 1991 Electronics World & Wireless World (BNC) Sept. 792 There were two MHL4s driving a pair of PX4s in push-pull. 2004 Vanity Fair (N.Y.) June 126/3 For Berlusconi (and cronies) the judicial system is just the push-pull of public life. < as lemmas |
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