This circuit was found in the February 1980 issue of Radio Electronics magazine. The digital circuit was shown in two parts, using 20 LEDs in a configuration with the LM3914.
This circuit is from a Fairchild digital clock module shown in the March 1977 issue of Radio...
Found in an Electronic Design from the 90s, this circuit modifies the phase of a signal in 8...
Any TTL inverter can be used in this circuit. We found it in documentation from the 80s, but it...