Non-inverting amplifier (CB9018E)

Found in documentation from the 70s, this circuit uses an operational one from that time. It goes for modern equivalents.

Programmable Digital Switch (CB3811E)
This circuit, which can be used safely, has been obtained in a 1987 documentation. It consists of a...
Analog multiplier (CB7392E)
Suggested by Fairchild in a 1980s publication, this multiplier uses operational amplifiers from that...
Logaritmic Amplifier (CB3931E)
We found this circuit in an old 1980s documentation. The circuit can be implemented with modern...