This circuit is suitable for automotive signaling applications. The integrated circuit is not common today. The circuit is from an 80's documentation.
Here we have an interesting circuit found in a 1981 publication that causes two LEDs to flash...
This circuit with 3.3 MΩ input impedance was found in the October 1993 issue of Electronics Now...
We found this circuit in a 1990 documentation. It draws one out of 10 numbers and during the draw...