With this circuit it is possible to obtain a higher voltage from a zener diode. The circuit is from a 1970’s EEE. The device used as a constant current source is uncommon today.
Found in 1965 General Electric technical documentation, this half-wave circuit controls shunt type...
This circuit uses damped oscillations to test an inductor. It can also be used to find the...
We found this configuration in documentation from the 1980s. It applies to almost any operational...