This circuit was found in a 1980s documentation. The circuit uses common components having an output of 10 Hz per centigrade degree of variation. The sensor is a transistor.
This circuit was found in Electronics Now. With it the dialing signals of a telephone are...
This traditional configuration of a white noise generator that uses the junction of a transistor with a...
This circuit generates an accurate 1 Hz signal controlled by a crystal. The circuit is from 1995...