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.
This circuit was found in a 1990 Electronics World magazine. The circuit can be mounted today by...
The inverter circuit shown in the figure can be used to power a fluorescent lamp in an emergency...
We find this circuit in an American 1980s documentation. Modern equivalent integrated circuits can be...