Found in an EDN from the 90s, this circuit makes use of integrated circuits of the time, some of which are uncommon today. The output is given by:
Where:
This sophisticated power supply for the laboratory of the maker or professional repaired was found...
This circuit was found in a 1966 General Electric documentation. It makes use of direct contact...
This circuit turns on a lamp when the night comes and turn it off in the morning. The circuit...