This Intersil circuit was found in a 1980s documentation. Operational are of the time, but current equivalents can be experienced. The graph with the circuit performance is given next to the diagram.
This circuit can be used with crystals from 100 kHz to 30 MHz and the resonant circuit must be...
This circuit was found in a 1992 publication. It has a different effect on a sequence of LEDs. The...
This circuit was obtained from a 2005 Linear Technology manual. It is based on company components...