This sequential circuit of LEDs was found in a Popular Electronics from the 90s. The circuit can be programmed and an adaptation consists of using optical couplers to drive power loads.
This circuit supplies voltages from 6 to 18 V with a maximum current of 2 A. We found it in a...
This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the...
This circuit was found in the SGS manual of linear integrated circuits of 1982. The integrated circuit...