This circuit is from a 1992 PE Hobbyst Handbook. The circuit fires an old electronic flash using an SCR. The circuit can be adapted for other types of applications.
The circuit shown in the figure shuts off a load when the voltage drops below the value determined...
This circuit was found in an American documentation from 1969. It serves to trigger circuits by...
We found this circuit in an American 1980s documentation. Other comparators can be used and the...