This circuit was found in Motorola documentation from the 1980s. The components are of the time, not currently common as operational and opto receiver.
This circuit was found in an American documentation from 1970. We can increase the number of...
This PUT (Unijunction Programmable Transistor) configuration was found in an 80s ON Semiconductor...
This simple circuit with sensors formed by bars or separate screens triggers in the presence of...