This circuit is from an 80's Electronic Engineering. The base is a common operating and 4 single integrated voltage comparators. The circuit directly drives 4 indicator LEDs.
This is an application circuit of the Texas Instruments (2019) component datasheet itself. The...
This conventional 12 V power supply stabilized with 2 A current was found in a 1995 documentation. Its...
This simple oscillator with two general-purpose transistors has its frequency given by capacitor...