This circuit is from Motorola's Linear Interface ICs from 1993. The MC1723 is the equivalent of the well-known 723. The transistor supports equivalents.
This logic circuit can indicate both TTL (5 V) and CMOS (5 to 12 V) output levels, operating with...
Found in old English documentation, this circuit can be built with BC548 transistors....
This circuit indicates the logic level of a digital signal. LEDs can replace the lamp, wired with...