Found in a 90s Popular Electronics, this circuit fires an old flash of xenon from the pulse of light received by a sensor. The trigger, however, is made with a delay given by C2.
This circuit can be found in a 1970 Motorola documentation. The circuit can be implemented with general...
This shield circuit with an optical coupler was found in an 90s EDN. The circuit can be used with...
This circuit is from 1977 documentation, and high current equivalent transistor must be used. The...