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.
In the figure we show the typical configuration of a shared line using a twisted pair where the...
We found this digital CMOS circuit in a documentation from the 90s. The circuit generates signals...
This tuning-free circuit was found in an old operating amplifier manual. The setting can serve as...