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 audio-driven relay was published in the July 1977 issue of Radio Electronics magazine. The...
This circuit can be used for signaling a panel with a common incandescent lamp. The lamp will...
This crystal oscillator is indicated for the calibration of IF steps of common radio receivers. The...