The presented circuit uses an opto-SCR. We found the circuit in the GE semiconductor manual. Equivalent triacs, depending on the load current and voltage, can be used.
Found in a 90s 303 Circuits, this circuit aims to provide a soft start for a low voltage halogen lamp....
This circuit using current components was found in an old documentation. It is a sequential circuit...
This audio detector circuit can be used for cable identification. We found it in a Popular...