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- [22] LOW-DISTORTION FREQUENCY-MODULATION MODULATORS PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1951, 39 (03): : 314 - 314
- [28] DESIGN OF LOW-NOISE AUDIO-FREQUENCY AMPLIFIERS RADIO AND ELECTRONIC ENGINEER, 1968, 36 (01): : 17 - +
- [29] Audio-frequency atmospherics PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1933, 21 (10): : 1476 - 1494
- [30] Frequency-Modulated Audio-Frequency Oscillator for Calibrating Flutter-Measuring Equipment JOURNAL OF THE SOCIETY OF MOTION PICTURE ENGINEERS, 1949, 52 (03): : 309 - 312