This circuit was found in a 1967 US documentation. The FET is general purpose and the 6V zener. The circuit has a very fast switching action.
In the figure we have the way to implement a 5 to 45 V zener diode with 50 mA of maximum current...
Supplied in a 2005 Linear Technology Application Manual, this circuit monitors the charge and...
The circuit we showed was obtained from our publication on relays and makes use of any...