Found in a 1970 documentation, this circuit makes use of 741 operational amplifiers that are common today. Note that the power supply must be symmetrical.
This circuit was found in the February 1994 issue of Electronics Now magazine. The circuit uses 6...
This circuit was found in a 1980s General Electric documentation. The circuit uses an operational of...
This circuit was found in documentation from the 1980s. The integrated circuit is from the time...