This circuit uses a 7-segment display to indicate the logic level of a test circuit. The power supply is made with 5 V that can come from the analyzed circuit itself.
This circuit is from Motorola's 1990 Linear Databook. We can implement it with other operational...
This power supply is protected from shorts in the load. The BD135 must be mounted on a heatsink...
We found this circuit in a Poptronics of the 90s. The circuit operates from 100 kHz to 30 MHz and...