This circuit was found as part of another project in a January 1988 Radio Electronics magazine. The frequencies are given by the timing capacitors.
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...