This is the receiver circuit for the previous remote control published in the same Radio Electronics magazine of November 1987. The sensor is a common phototransistor.
This circuit appears on this site from different sources. This is from documentation from the...
The circuit shown in the figure consists of a low voltage drop (LDO) regulator for 200 mA using the...
The operating principle of the VCO shown in the figure is the same as the CIR4598 circuit. The...