This circuit turns off after a time given by capacitor C1. This component can have from 1 to 1,000 uF depending on the desired time. The circuit is from an Electronics Now from June 1995.
This constant current source is from the LM11's own factory manual used in the application. The circuit is...
This circuit was found in documentation from the 1970s. However, it can be implemented with modern...
This circuit can work with almost any JFET. The circuit is from an Electronics Now from April...