This circuit is from a 1980s Signetics documentation but is valid for modern operating. Next to the diagram the formulas for the calculation of the components.
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...