Electronics. A wave-form showing a slow linear rise and rapid linear fall, or the reverse; a voltage or current varying in this way. Usually attrib…

In recording sound on magnetic tape or (in early use) wire: an electronic signal at ultrasonic frequencies added to an input audio signal to…

(a voltage represented by) a periodic wave that varies abruptly in amplitude between two fixed values, spending equal times at each.

Electronics. An electrical waveform in which the voltage increases linearly with time. Usually attributive.