This TTL circuit has a well-known configuration, having been found in a Radio Electronics magazine from December 1980. The power supply must be 5 V.
With changes, this circuit from a documentation of the 70s, can be adapted to use more modern...
We found this circuit in a 90s Popular Electronics. The circuit can be implemented with modern...
This conventional 4017 sequential circuit has appeared several times in our articles and on this...