This single trigger circuit has been indicated for photography applications. The circuit is from a 1964 Electronics World. The transistor is general-purpose and the SCR can be of any type.
This circuit is a high voltage source for a gas LASER. We found it in a documentation from the...
With this circuit it is possible to control a current of several amps, depending on Q1, from a low...
Datasheet of We found this circuit in the 1982 SGS Linear Integrated Circuits manual. A | table...