This simple logic test circuit with 3 LEDs was found in October 1985 Radio Electronics magazine. The power supply is according to the logic, and this version is indicated for TTL.
This circuit provides a power per channel between 6 and 10 W depending on the load. The circuit is from...
Found in Electronics now, this circuit generates signals given by the formulas next to the...
With this circuit it is possible to monitor a signal that is being recorded on an old tape...