This circuit was found on an old EDN and can be used as a shield. Optical couplers are from the era and modern equivalents can be used.
This sensitive amplifier for low current measurement uses a differential amplifier configuration with...
This monochrome analog TV pattern generator was found in the July 1991 issue of Radio Electronics...
The circuit is of the Motorola Linear Databook of 1990. The power source must be symmetrical and the...