This simple digital circuit tester can work with TTL technology when powered by 5 V and with CMOS when powered by voltages from 3 to 15 V. The circuit provides LED indications and uses current ICs.
This circuit can be powered by a solar cell. The circuit is from a 1991 documentation having a...
This circuit was found in an American documentation from 1970. We can increase the number of...
Found on a Radio Electronics, but also on other sources and placed elsewhere in this section, this low...