In the figure we have the way to implement a monostable with an operational amplifier LM393. The configuration applies to other operators and the power supply must be symmetrical.
This simple circuit uses small speakers for both listening and speaking (microphone). The feeding is...
This circuit was found in an Argentine publication from 1973. It uses a common AM coil (50 + 50...
Found in a 1970 documentation, this SCR bistable can be implemented with modern equivalent SCRs. Observe...