Found in European documentation from the 1980s, this circuit was originally designed for computer applications of the time. However, the basic idea can be adapted for use with microcontrollers.
This circuit can gerenate square signals and be comanded by na external control. When the input...
This circuit is from an American 1967 documentation and can be implemented with modern equivalent...
This circuit was found in 1968 General Electric documentation. The circuit uses components from the era...