This circuit with the NE602 was found in the February 1997 Electronics Now magazine. The NE602 integrated circuit is not very common these days.
This circuit is indicated to operate from high impedance sources as piezoelectric transducers....
We found this circuit in a Motorola publication from the 70s. The circuit can be implemented with...
This double bench source has a fixed voltage output and an adjustable voltage output with current up...