This circuit is from a 1990 Philips Databook. The circuit uses a symmetrical source and power from 15 to 40 V. Performance information is given in the table below.
We found this circuit in the March 1980 Radio Electronics magazine. The circuit used is the HA2400...
This simple circuit can be used in a robot that follows the light directly feeding a small motor....
This circuit was found in a telecommunications publication of 1978. Its purpose is to obtain...