The operational amplifier of this circuit can be the 741. The circuit has very low consumption and can be powered by two 9-B batteries. Low voltage amplifiers can be used.
This circuit is found in a 2005 Linear Technology application manual. The circuit monitors the High...
This circuit is from a 1992 Electronics Handbook. The circuit generates a special tone effect for...
We found this circuit in an old American documentation. The circuit can be applied to modern...