The purpose of this 1965 Radio Electronics circuit is to observe cycloid waveforms on a standard oscilloscope. The frequency range depends on the switch settings.
This circuit only detects variations in light falling on the sensor. The circuit uses an LM380 as a...
This is the well-known lightning lamp that was published in the March 1988 issue of Saber...
This photoelectric cell light relay was found in Radio Electronics magazine from April 1958. The...