Found in a 1965 Electronic Design, this circuit produces a signal with the waveform shown in the figure from an input pulse. Components admit equivalents.
This circuit is from a 1974 publication by Motorola. The unijunction may be 2N2646 and bipolar BC558...
This tuning-free circuit was found in an old operating amplifier manual. The setting can serve as...
The sensors in this circuit are photodiodes with filters. The circuit is suggested by the National...