This circuit with zener diodes was found in documentation from the 90s. The zener diodes determine the lighting point of the LEDs. The circuit is for 12 V automotive batteries.
Suggested by an Electronic Engineering of the 90s, this circuit serves to test the continuity of...
August 2017 - This Maxim component, available from Mouser Electronics, is ideal for wearables,...
Found in documentation from the 1980s, this circuit can generate signals between 6 and 8 MHz. The...