This circuit was found in the Electronics Experimenter Handbook from 1991. The circuit controls a simple relay for the purpose of turning circuits on or off or switching audio channels.
This circuit can be implemented with other operational ones. We found it in documentation from the...
August 2017 - Texas Instruments is announcing the availability by Mouser Electronics of its new...
This circuit was obtained in a 1979 publication, but it can be assembled with the BD135 instead of the...