This basic CMOS 4001 circuit was found in the April 1976 issue of Radio Electronics magazine. The circuit generates rectangular signals, and the components can be changed to obtain other frequencies.
This circuit was found in a 1977 documentation. With it we have the direct indication, through LEDs...
This circuit provides two outputs of the same signal. One with the original phase and the other...
This circuit was found in a Popular Electronics from the 90s. The circuit uses a general purpose...