multivibratorn.

Brit.

/ˌmʌltɪvʌɪˈbreɪtə/, U.S.

/ˌməltiˈvaɪˌbreɪdər/; see also multi- comb. form.

Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: multi- comb. form, vibrator n.

Etymology: < multi- comb. form + vibrator n., after French multivibrateur (Abraham & Bloch 1919, in Comptes rendus de l'Acad. des Sci. 168 1107).

Electronics.

A device consisting of two amplifying transistors or valves, each with its output connected to the input of the other, which produces an oscillatory signal rich in harmonics and is capable of being triggered and stabilized by an applied sinusoidal signal of slightly higher frequency (the form of the coupling determining the resonant frequency of the device and whether it is astable, bistable, or monostable).

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [noun] > oscillator > types of

multivibrator1919

squegger1921

relaxation oscillator1931

sweeper1967

Wien bridge oscillator1967

1919 Sci. Abstr. B. 22 287 The source of oscillations which has been found very successful in operation has been called a ‘multivibrator’. It possesses, besides the fundamental wave-length, all the harmonics from 1 up to two or three hundred.

1940 Amateur Radio Handbk. (ed. 2) xiv. 219/1 A multi-vibrator operating on 10 kc can be readily locked by a few volts..of 100 kc frequency, and the harmonics of the multivibrator stage will produce carrier frequencies spaced throughout the radio-frequency spectrum at 10 kc intervals with a precision equal to that of the locking source.

1969 J. J. Sparkes Transistor Switching iii. 52 The multivibrator can, of course, produce square waves as well as rectangular waves simply by ensuring symmetry between the two halves of the circuit.

1987 J. Millman & A. Grabel Microelectronics (ed. 2) xv. 669 Multivibrators are another important group of regenerative circuits that are used extensively in timing applications.

This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022).

单词	multivibrator
释义	multivibratorn. Brit. /ˌmʌltɪvʌɪˈbreɪtə/, U.S. /ˌməltiˈvaɪˌbreɪdər/; see also multi- comb. form. Origin: Formed within English, by compounding; modelled on a French lexical item. Etymons: multi- comb. form, vibrator n. Etymology: < multi- comb. form + vibrator n., after French multivibrateur (Abraham & Bloch 1919, in Comptes rendus de l'Acad. des Sci. 168 1107). Electronics. A device consisting of two amplifying transistors or valves, each with its output connected to the input of the other, which produces an oscillatory signal rich in harmonics and is capable of being triggered and stabilized by an applied sinusoidal signal of slightly higher frequency (the form of the coupling determining the resonant frequency of the device and whether it is astable, bistable, or monostable). ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [noun] > oscillator > types of multivibrator1919 squegger1921 relaxation oscillator1931 sweeper1967 Wien bridge oscillator1967 1919 Sci. Abstr. B. 22 287 The source of oscillations which has been found very successful in operation has been called a ‘multivibrator’. It possesses, besides the fundamental wave-length, all the harmonics from 1 up to two or three hundred. 1940 Amateur Radio Handbk. (ed. 2) xiv. 219/1 A multi-vibrator operating on 10 kc can be readily locked by a few volts..of 100 kc frequency, and the harmonics of the multivibrator stage will produce carrier frequencies spaced throughout the radio-frequency spectrum at 10 kc intervals with a precision equal to that of the locking source. 1969 J. J. Sparkes Transistor Switching iii. 52 The multivibrator can, of course, produce square waves as well as rectangular waves simply by ensuring symmetry between the two halves of the circuit. 1987 J. Millman & A. Grabel Microelectronics (ed. 2) xv. 669 Multivibrators are another important group of regenerative circuits that are used extensively in timing applications. This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022). < n.1919
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