We found this circuit in a 90's EDN. The circuit is based on a control integrated that is still common in these types of applications. The circuit uses a PROM.
This circuit accelerates the tripping of a relay when energized. The circuit uses the CA3018...
This circuit is from an American manual from 1974. It uses a diac (Q1) and the SCR can be the...
This circuit was found in a 1967 General Electric documentation. The circuit generates signals...