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 an American 1980s documentation. The transistors admit equivalents and the...
We find this circuit in a 1980s documentation. The circuit can be applied to modern operators with...
This circuit is from Mullard documentation from 1969. Transistors support current equivalents. Output...