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.
July 2017 - Mouser Electronics announced the availability of Littelfuse's GEN2 series Schottky...
This configuration is suggested by Mullard (Philips) in an old manual of 555 integrated circuits....
We found this circuit in a Popular Electronics of the 90s. Its purpose is to detect when it locks...