Found in an Electronic Design from the 90s, this circuit provides outputs according to the input following the truth table given next to the diagram. The various options are shown.
The 556 consists of a double integrated circuit 555, which can be replaced by them in this...
We found this circuit in a Radio Electronics from January 1967. The SCR is already the C106, which...
This circuit is from American documentation from 1970. It can be designed with a BC558 and for the...