The circuit shown was found in the 1994 National Semiconductor's Linear Application Handbook. The op amp admits equivalents and the power supply must be symmetrical.
This circuit using an operational amplifier was found in old American documentation. It can be...
This is a voltmeter with high input resistance. The transistor is germanium. We found it in an...
Two NAND gates are used in the configuration shown here to perform as a monostable triggered by...