This circuit appeared in the 1991 Electronics Experimenter Handbook. The circuit is for remote controls of the time that are slower than today's and may not work with modern types.
We found this circuit in a year 2000 documentation. It must be powered by a voltage of 5 V as it...
This circuit was found in the February 1990 issue of Radio Electronics magazine. The circuit uses...
Voltage comparators, such as those in the LM139/239/339 series, consist of devices that can be...