This configuration is from a 1964 US documentation valid for any FET. The range of power voltages depends on the application.
This circuit is from Radio Electronics. The magazine no more exists, but the circuit can be...
With calibrated RV1 it is possible to find a zener diode voltage. The integrated circuit is 0 741...
We found this circuit in an 80's EDN. The circuit makes use of a MAX680, being given a table with...