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.
Mouser Electronics is making available the Texas Instruments DRV401 Q1 integrated circuit, a...
This circuit was found in a Popular Electronics from April 1993. It is a voltage regulator circuit...
The purpose of this 2000 documentation circuit is to decode SSB (BLU) signals to be audible on...