We found this circuit in the Linear Applications Handbook by National Semiconductor. The circuit is from 1994, but it can be made with more modern equivalent components.
In the figure we have the way to use a shift register to divide the frequency of a signal by 9....
One of the application circuits that we gave at the beginning of this sequence was a bistable...
The maximum current of this circuit can reach 500 mA with BD136 and 1 A with TIP32. The circuit...