The difference between this circuit and the previous one is that it uses PNP transistors. The circuit is from Radio Electronics magazine from July 1968. The frequency depends on R1 and C1.
A binary counter until 2" or a divide-by-the same value can be built by cascading n 4013...
We can control the frequency of an oscillator from digital circuits or from the output of a...
Found on Popular Electronics this circuit has variations found throughout this site and section....