This circuit indicates a digital value through a moving bar. The circuit is TTL and must be powered by 5 V. We find this circuit in a Texas Instruments optoelectronics manual.
This temperature sensor circuit was found in an old American documentation. The components used...
The normal use of a 4520 as a divide-by-16 counter is shown in Figure bellow. In the normal...
This circuit keeps the courtesy lights of a car on for a while after the doors are closed. The...