This circuit was found in a Texas Instruments documentation from the 1980s. The circuit monitors engine temperature by warning of engine warm-up and warning when the fan is on.
This conventional sequential circuit with triacs is only for incandescent lamps. The circuit is...
Found in an ancient American documentation, this circuit has the basic configuration of a crystal...
This circuit was found in a 1992 documentation. It activates a relay when light falls on a...