This circuit can be used to obtain a zener voltage from a common zener of another value, adjusting in a multimeter. The circuit is from an American documentation of the 1970s.
Found in Maxim's documentation from the 90's, this circuit uses a component from the time and has its...
The accuracy of this simple circuit depends on the accuracy of the input circuit resistors. Any...
In fact, this is the circuit also known as “vox”, that is, a relay triggered by sound. This...