With this circuit, from an old operational datasheet, it is possible to measure the CMRR, rejection in common mode of an operational one. The power supply must be symmetrical.
This circuit was obtained in a 1960 transistor manual from Sylvania. The circuit uses small...
This 1980s documentation circuit uses a 741 in a different high-speed comparator configuration. The feed...
This is the typical circuit of a 60's tape recorder. The circuit uses only two transistors and has a...