This circuit was found in a 1980s American documentation. The data circuit has a low speed, according to the components used. Transistors support modern equivalents.
This circuit was described in an article in Electronics Now magazine in December 1995. The circuit...
This circuit squares the waveform of a signal applied to its input. The circuit is from an old...
This circuit was obtained from a European magazine of the 1990s. The integrated circuit used is...