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.
Texas Instruments LMV3xxA operational amplifiers are low voltage types (2.5 to 5.5 V). In the...
This amplifier step with a transistor has an input impedance of 100k to 10 M. The transistor can be any...
This circuit is from 1993 documentation. The table shows the component values for voltage...