The maximum frequency of this circuit is 500 kHz. We found it in a documentation for radio amateurs from the 1980s. The integrated circuit used is uncommon today.
Figure bellow shows how n 4027 can be cascaded to form a divide-by-2. The maximum input frequency...
This circuit was published in the February 1970 issue of Radio Electronics magazine. The circuit uses...
The circuit shown in the figure generates a rectangular signal that depends on R and C, when its...