We find this circuit in an Electronic Design of the 90s. The used integrated circuit admits equivalents and next to the diagram are given the formulas for the calculation of the components used.
We found this circuit in a 1968 Electronics World. The transistors are from the era and...
In the figure we have the way to implement a monostable with an operational amplifier LM393. The...
Suggested by Motorola documentation from the 1980s, this circuit makes use of MOSFETs of the time....