Suggested by Texas Instruments in 1980s documentation, this circuit uses a component of the era. The operating characteristics are given next to the diagram.
This timer was found in the Texas Instruments 1996 linear applications manual. The relay must be...
This circuit compares two light intensities, providing the indication on an analog instrument. The...
This circuit was obtained in a 1983 publication. It is a 1-transistor voltmeter, capable of...