This circuit generates rectangular signals with 3-phase outputs. The circuit is from an Electronic Design from the 90s.
This is a VU-meter bargraph with up to 7 LEDs according the Power supply voltage. Adjusts are made by...
This electronic siren circuit, found in a 1982 documentation, uses three oscillators mounted...
This circuit is from a 1968 documentation using one of the first integrated circuits available at the...