This static switch circuit or solid-state contactor was found in a Motorola documentation from 1968. The circuit can control a 5 A load with the indicated transistor.
This circuit is from a 1980s Motorola documentation. The circuit can be made with modern...
This well-known circuit triggers a relay when light striking the phototransistor is cut off. The...
This circuit generates a pulsed tone whose frequency depends on C2 and whose flashing depends on...