This circuit can be used in a signal level indicator with LEDs. The circuit is from an Electronics Now dated January 1996. The power supply must be dual.
November 2016 - Already available from Mouser Electronics on Texas Instruments' new DS280BR820...
This circuit found in a 1988 documentation consists of a timer or sequential timer controller. The...
This astable multivibrator has an emitter coupling between the transistors. The circuit is from...