This circuit was obtained from Linear Technology documentation from the 80's. Powered by 5 V it can be used as a shield. The components are from the era.
This configuration with two operators was found in a circuit manual from the 1980s. However, it...
This circuit was found in a 1980s documentation. The operational amplifier is of a common type at the...
This small signal amplifier circuit was found in Motorola's 1969 documentation. The FET and the...