This circuit was found in Intersil's documentation from the 70's, being indicated for powering operational amplifiers. The circuit divides the voltage from a single source.
This circuit is from a 1987 magazine, but it can still be easily assembled, as the components are...
In the figure we have a second order filter with very high input impedance, using an operational...
This circuit is from Motorola's Linear Interface ICs from 1993. The MC1723 is the equivalent of...