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 was found in the June 1982 issue of Radio Electronics magazine. It provides reference...
With this source, it is possible to obtain a higher output voltage than that obtained by the...
This circuit was found in a 70s American documentation. The operational amplifier supports a modern...