This circuit was found in a 1967 documentation. It is intended for triggering a xenon LASER. Observe the high operating voltages of the circuit. The components used are uncommon today.
In the figure we have a security system consisting of a sophisticated alarm found in a 90s edition...
The purpose of this circuit found in an American 1980s documentation is to produce a current pulse to...
The transistor used in this circuit is uncommon today. AC124 or equivalent such as AC188K and...