This circuit was found in Texas Instruments documentation from 1968. The transistors are from that time, admitting modern equivalents. The response ranges is from 20 to 20 000 Hz.
This circuit was suggested by the 101 Electronics Circuits of 1979, but it is still current if we...
This circuit is based on an old Texas Instruments' 80s integrated circuit. The integrated circuit is no...
We found this circuit in an American documentation from 1977. In it we have the way to use an...